CINXE.COM
File:Understanding the difference between surgical masks and N95 respirators.pdf - Wikipedia
<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref--excluded vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-not-available" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>File:Understanding the difference between surgical masks and N95 respirators.pdf - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref--excluded vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-not-available";var cookie=document.cookie.match(/(?:^|; )enwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""], "wgDefaultDateFormat":"dmy","wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"7e136ac4-4626-4ce9-bfaa-1bbfcf84b26c","wgCanonicalNamespace":"File","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":6,"wgPageName":"File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf","wgTitle":"Understanding the difference between surgical masks and N95 respirators.pdf","wgCurRevisionId":0,"wgRevisionId":0,"wgArticleId":0,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":[],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf","wgRelevantArticleId":0,"wgIsProbablyEditable":false,"wgRelevantPageIsProbablyEditable":false,"wgRestrictionCreate":[],"wgNoticeProject":"wikipedia", "wgCiteReferencePreviewsActive":false,"wgFlaggedRevsParams":{"tags":{"status":{"levels":1}}},"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":0,"wgFileWarning":{"messages":{"main":"pdf-file-page-warning","header":"pdf-file-page-warning-header","info":"pdf-file-page-warning-info","footer":"pdf-file-page-warning-footer"},"link":"//www.mediawiki.org/wiki/Special:MyLanguage/Help:Security/PDF_files","module":"pdfhandler.messages"},"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":true,"wgCheckUserClientHintsHeadersJsApi":[ "brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","mediawiki.interface.helpers.styles":"ready","mediawiki.action.view.filepage":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","filepage":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["pdfhandler.messages","mediawiki.filewarning","mediawiki.action.view.metadata","site","mediawiki.page.ready","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp", "ext.gadget.ReferenceTooltips","ext.gadget.switcher","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.checkUser.clientHints"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&modules=ext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cfilepage%7Cmediawiki.action.view.filepage%7Cmediawiki.interface.helpers.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <link rel="stylesheet" href="https://commons.wikimedia.org/w/index.php?title=MediaWiki:Filepage.css&action=raw&ctype=text/css"> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-1200px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="1855"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-800px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="1236"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-640px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="989"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="File:Understanding the difference between surgical masks and N95 respirators.pdf - Wikipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//en.m.wikipedia.org/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (en)"> <link rel="EditURI" type="application/rsd+xml" href="//en.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://commons.wikimedia.org/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en"> <link rel="alternate" type="application/atom+xml" title="Wikipedia Atom feed" href="/w/index.php?title=Special:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-6 ns-subject page-File_Understanding_the_difference_between_surgical_masks_and_N95_respirators_pdf rootpage-File_Understanding_the_difference_between_surgical_masks_and_N95_respirators_pdf skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Jump to content</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Main menu" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Main menu</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Main menu</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">hide</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigation </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-contents" class="mw-list-item"><a href="/wiki/Wikipedia:Contents" title="Guides to browsing Wikipedia"><span>Contents</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:Current_events" title="Articles related to current events"><span>Current events</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:Random" title="Visit a randomly selected article [x]" accesskey="x"><span>Random article</span></a></li><li id="n-aboutsite" class="mw-list-item"><a href="/wiki/Wikipedia:About" title="Learn about Wikipedia and how it works"><span>About Wikipedia</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us" title="How to contact Wikipedia"><span>Contact us</span></a></li> </ul> </div> </div> <div id="p-interaction" class="vector-menu mw-portlet mw-portlet-interaction" > <div class="vector-menu-heading"> Contribute </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Help:Contents" title="Guidance on how to use and edit Wikipedia"><span>Help</span></a></li><li id="n-introduction" class="mw-list-item"><a href="/wiki/Help:Introduction" title="Learn how to edit Wikipedia"><span>Learn to edit</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Community_portal" title="The hub for editors"><span>Community portal</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes to Wikipedia [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_upload_wizard" title="Add images or other media for use on Wikipedia"><span>Upload file</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Main_Page" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="The Free Encyclopedia" src="/static/images/mobile/copyright/wikipedia-tagline-en.svg" width="117" height="13" style="width: 7.3125em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Search Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Search</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Search Wikipedia" aria-label="Search Wikipedia" autocapitalize="sentences" title="Search Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Search</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personal tools"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en" class=""><span>Donate</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:CreateAccount&returnto=File%3AUnderstanding+the+difference+between+surgical+masks+and+N95+respirators.pdf" title="You are encouraged to create an account and log in; however, it is not mandatory" class=""><span>Create account</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:UserLogin&returnto=File%3AUnderstanding+the+difference+between+surgical+masks+and+N95+respirators.pdf" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o" class=""><span>Log in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Log in and more options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personal tools" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personal tools</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en"><span>Donate</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&returnto=File%3AUnderstanding+the+difference+between+surgical+masks+and+N95+respirators.pdf" title="You are encouraged to create an account and log in; however, it is not mandatory"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Create account</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:UserLogin&returnto=File%3AUnderstanding+the+difference+between+surgical+masks+and+N95+respirators.pdf" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Help:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading">File:Understanding the difference between surgical masks and N95 respirators.pdf</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang mw-portlet-lang-icon-only" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector-empty" aria-label="This article exist only in this language. Add the article for other languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only mw-portlet-lang-heading-empty" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language mw-ui-icon-wikimedia-language"></span> <span class="vector-dropdown-label-text">Add languages</span> </label> <div class="vector-dropdown-content"> <div class="mw-portlet-empty-language-selector-body"> Page contents not supported in other languages. </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-image" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf" title="View the file page [c]" accesskey="c"><span>File</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=File_talk:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf&action=edit&redlink=1" rel="discussion" class="new" title="Discuss improvements to the content page (page does not exist) [t]" accesskey="t"><span>Talk</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf"><span>Read</span></a></li><li id="ca-view-foreign" class="vector-tab-noicon mw-list-item"><a href="https://commons.wikimedia.org/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf"><span>View on Commons</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Tools</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf"><span>Read</span></a></li><li id="ca-more-view-foreign" class="vector-more-collapsible-item mw-list-item"><a href="https://commons.wikimedia.org/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf"><span>View on Commons</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf" title="List of all English Wikipedia pages containing links to this page [j]" accesskey="j"><span>What links here</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-print" class="mw-list-item"><a href="javascript:print();" rel="alternate" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf&action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FFile%3AUnderstanding_the_difference_between_surgical_masks_and_N95_respirators.pdf"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FFile%3AUnderstanding_the_difference_between_surgical_masks_and_N95_respirators.pdf"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects emptyPortlet" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> <div id="mw-indicator-commons-icon" class="mw-indicator"><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf" title="This is a file from the Wikimedia Commons"><img alt="This is a file from the Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/15px-Commons-logo.svg.png" decoding="async" width="15" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/22px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><ul id="filetoc" role="navigation"><li><a href="#file">File</a></li> <li><a href="#filehistory">File history</a></li> <li><a href="#filelinks">File usage</a></li> <li><a href="#globalusage">Global file usage</a></li> <li><a href="#metadata">Metadata</a></li></ul><div class="fullImageLink" id="file"><a href="//upload.wikimedia.org/wikipedia/commons/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf"><img alt="File:Understanding the difference between surgical masks and N95 respirators.pdf" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-388px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg" decoding="async" width="388" height="600" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-582px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-776px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg 2x" data-file-width="1650" data-file-height="2550" /></a><div class="mw-filepage-resolutioninfo">Size of this JPG preview of this PDF file: <a href="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-388px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg" class="mw-thumbnail-link">388 × 600 pixels</a>. <span class="mw-filepage-other-resolutions">Other resolutions: <a href="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-155px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg" class="mw-thumbnail-link">155 × 240 pixels</a> | <a href="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-310px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg" class="mw-thumbnail-link">310 × 480 pixels</a> | <a href="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-497px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg" class="mw-thumbnail-link">497 × 768 pixels</a> | <a href="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-662px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg" class="mw-thumbnail-link">662 × 1,024 pixels</a> | <a href="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-1650px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg" class="mw-thumbnail-link">1,650 × 2,550 pixels</a>.</span></div></div> <div class="mw-content-ltr fullMedia" lang="en" dir="ltr"><p><bdi dir="ltr"><a href="//upload.wikimedia.org/wikipedia/commons/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf" class="internal" title="Understanding the difference between surgical masks and N95 respirators.pdf">Original file</a></bdi> <span class="fileInfo">(1,650 × 2,550 pixels, file size: 227 KB, MIME type: <span class="mime-type">application/pdf</span>)</span> </p></div><div class="sharedUploadNotice"> <div class="mw-parser-output"> <style data-mw-deduplicate="TemplateStyles:r1238441935">.mw-parser-output .fmbox{clear:both;margin:0.2em 0;width:100%;border:1px solid #a2a9b1;background-color:var(--background-color-interactive-subtle,#f8f9fa);box-sizing:border-box;color:var(--color-base,#202122)}.mw-parser-output .fmbox-warning{border:1px solid #bb7070;background-color:#ffdbdb}.mw-parser-output .fmbox-editnotice{background-color:transparent}.mw-parser-output .fmbox .mbox-text{border:none;padding:0.25em 0.9em;width:100%}.mw-parser-output .fmbox .mbox-image{border:none;padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .fmbox .mbox-imageright{border:none;padding:2px 0.9em 2px 0;text-align:center}.mw-parser-output .fmbox .mbox-invalid-type{text-align:center}@media screen{html.skin-theme-clientpref-night .mw-parser-output .fmbox-warning{background-color:#300}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .fmbox-warning{background-color:#300}}</style><table id="mw-sharedupload" class="plainlinks fmbox fmbox-system" role="presentation"><tbody><tr><td class="mbox-image"><span class="noviewer" typeof="mw:File"><span title="Wikimedia Commons logo"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></td><td class="mbox-text" style="text-align: center;">This is a file from the <a href="https://commons.wikimedia.org/wiki/Main_Page" class="extiw" title="commons:Main Page">Wikimedia Commons</a>. Information from its <b><a href="https://commons.wikimedia.org/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf" class="extiw" title="commons:File:Understanding the difference between surgical masks and N95 respirators.pdf">description page there</a></b> is shown below.<br /><span style="font-size: smaller;">Commons is a freely licensed media file repository. <a href="https://commons.wikimedia.org/wiki/Commons:Welcome" class="extiw" title="commons:Commons:Welcome">You can help</a>.</span></td></tr></tbody></table> </div> </div> <div id="shared-image-desc"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="mw-heading mw-heading2"><h2 id="Summary">Summary</h2></div> <div class="hproduct commons-file-information-table"> <table class="fileinfotpl-type-information vevent" dir="ltr"> <tbody><tr> <td id="fileinfotpl_desc" class="fileinfo-paramfield" lang="en">Description<span class="summary fn" style="display:none">Understanding the difference between surgical masks and N95 respirators.pdf</span></td> <td class="description"> <div class="description en" dir="ltr" lang="en"><span class="language en" title="English"><b>English: </b></span> NIOSH infographic for the difference between surgical masks and N95 face pieces</div></td> </tr> <tr> <td id="fileinfotpl_date" class="fileinfo-paramfield" lang="en">Date</td> <td lang="en"> <i>c.</i> July 2018</td> </tr> <tr> <td id="fileinfotpl_src" class="fileinfo-paramfield" lang="en">Source</td> <td> <a rel="nofollow" class="external free" href="https://www.cdc.gov/niosh/npptl/pdfs/UnderstandDifferenceInfographic-508.pdf">https://www.cdc.gov/niosh/npptl/pdfs/UnderstandDifferenceInfographic-508.pdf</a></td> </tr> <tr> <td id="fileinfotpl_aut" class="fileinfo-paramfield" lang="en">Author</td> <td> U.S. <a href="https://en.wikipedia.org/wiki/National_Institute_for_Occupational_Safety_and_Health" class="extiw" title="w:National Institute for Occupational Safety and Health">National Institute for Occupational Safety and Health</a></td> </tr> <tr> <td id="fileinfotpl_perm" class="fileinfo-paramfield" lang="en">Permission<br><small>(<a href="//commons.wikimedia.org/wiki/Commons:Reusing_content_outside_Wikimedia" title="Commons:Reusing content outside Wikimedia">Reusing this file</a>)</small></td> <td> <table class="licensetpl" style="display:none"> <tbody><tr> <td><span class="licensetpl_short">Public domain</span><span class="licensetpl_long">Public domain</span><span class="licensetpl_link_req">false</span><span class="licensetpl_attr_req">false</span> </td></tr></tbody></table> <table style="width: 100%; clear: both; margin: 0.5em auto; background-color: var(--background-color-neutral-subtle, #f7f8ff); color: var(--color-base, #202122); border: var(--border-subtle, 2px solid #8888aa); border-spacing: 8px; padding: 0px;" dir="ltr" class="layouttemplate" lang="en"> <tbody><tr> <td><span typeof="mw:File"><span title="Public domain"><img alt="Public domain" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/64px-PD-icon.svg.png" decoding="async" width="64" height="64" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/96px-PD-icon.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/PD-icon.svg/128px-PD-icon.svg.png 2x" data-file-width="196" data-file-height="196"></span></span> </td> <td><div lang="en" dir="ltr" class="description en" style="display:inline;"><i>This image is a work of the <b><a href="https://en.wikipedia.org/wiki/en:National_Institute_for_Occupational_Safety_and_Health" class="extiw" title="w:en:National Institute for Occupational Safety and Health">National Institute for Occupational Safety and Health</a></b>, part of the <a href="https://en.wikipedia.org/wiki/en:Centers_for_Disease_Control_and_Prevention" class="extiw" title="w:en:Centers for Disease Control and Prevention">Centers for Disease Control and Prevention</a> in the <a href="https://en.wikipedia.org/wiki/en:United_States_Department_of_Health_and_Human_Services" class="extiw" title="w:en:United States Department of Health and Human Services">United States Department of Health and Human Services</a>, taken or made as part of an employee's official duties. As a work of the <a href="https://en.wikipedia.org/wiki/Federal_Government_of_the_United_States" class="extiw" title="w:Federal Government of the United States">U.S. federal government</a>, the image is in the <b><a href="https://en.wikipedia.org/wiki/public_domain" class="extiw" title="w:public domain">public domain</a></b>.</i></div> <hr> <p><span style="font-size:x-small;line-height:140%" class="plainlinks noprint"><a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-USGov-HHS-NIOSH/de">Deutsch</a> | <a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-USGov-HHS-NIOSH/en">English</a> | <a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-USGov-HHS-NIOSH/es">español</a> | <a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-USGov-HHS-NIOSH/fr">français</a> | <a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-USGov-HHS-NIOSH/pt">português</a> | <a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-USGov-HHS-NIOSH/uk">українська</a> | <a class="external text" href="https://commons.wikimedia.org/wiki/Template:PD-USGov-HHS-NIOSH/zh">中文</a> | <small class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/w/index.php?title=Template:PD-USGov-HHS-NIOSH/lang&action=edit">+/−</a></small></span> </p> </td> <td><figure class="mw-halign-right" typeof="mw:File"><span><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/NIOSH_logo.svg/125px-NIOSH_logo.svg.png" decoding="async" width="125" height="43" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/NIOSH_logo.svg/188px-NIOSH_logo.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/NIOSH_logo.svg/250px-NIOSH_logo.svg.png 2x" data-file-width="190" data-file-height="65"></span><figcaption></figcaption></figure> </td></tr></tbody></table></td> </tr> <tr> <td id="fileinfotpl_ver" class="fileinfo-paramfield" lang="en">Other versions</td> <td> <a rel="nofollow" class="external text" href="https://www.cdc.gov/niosh/npptl/pdfs/UnderstandingDifference3-508.pdf">version with Elastomeric respirator</a></td> </tr> </tbody></table> </div><h1 class="mw-slot-header"><mediainfoslotheader></mediainfoslotheader></h1><mediainfoview style="display: none"><mediainfoviewcaptions><div class="wbmi-entityview-captionsPanel oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><h3 class="wbmi-entityview-captions-header">Captions</h3><div class="wbmi-entityview-caption oo-ui-layout oo-ui-horizontalLayout"><label class="wbmi-language-label oo-ui-widget oo-ui-widget-enabled oo-ui-labelElement-label oo-ui-labelElement oo-ui-labelWidget">English</label><div lang="en" dir="ltr" class="wbmi-caption-value wbmi-entityview-emptyCaption">Add a one-line explanation of what this file represents</div></div></div></mediainfoviewcaptions><mediainfoviewstatements><div id="P180" data-property="P180" data-statements="[]" data-formatvalue="[]" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P180 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h3 class="wbmi-statements-title">Items portrayed in this file</h3><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P180" href="https://www.wikidata.org/wiki/Special:EntityPage/P180">depicts</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"></div></div></div><div id="P1163" data-property="P1163" data-statements="[{"mainsnak":{"snaktype":"value","property":"P1163","hash":"2bfab83c01f78cf3d2dfa9780845b9108ac3da53","datavalue":{"value":"application\/pdf","type":"string"}},"type":"statement","id":"M88408238$24746407-8FE1-4493-826A-712782910837","rank":"normal"}]" data-formatvalue="{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":1163,\"id\":\"P1163\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P1163\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P1163\">media type<\/a>"}},"text\/plain":{"en":{"":"media type"}}},"{\"value\":\"application\\\/pdf\",\"type\":\"string\"}":{"text\/html":{"en":{"P1163":"application\/pdf"}},"text\/plain":{"en":{"P1163":"application\/pdf"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P1163 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed"><div class="wbmi-statements-widget"><div class="wbmi-statement-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi><a target="_blank" title="d:Special:EntityPage/P1163" href="https://www.wikidata.org/wiki/Special:EntityPage/P1163">media type</a></bdi></h4></div></div></div><div class="wbmi-content-items-group"><div class="wbmi-item wbmi-item-read"><div data-guid="M88408238$24746407-8FE1-4493-826A-712782910837" class="wbmi-item-container"><div class="wbmi-entity-header"><div class="wbmi-entity-data"><div class="wbmi-entity-title"><h4 class="wbmi-entity-label"><bdi>application/pdf</bdi></h4></div></div></div></div></div></div></div></div></mediainfoviewstatements></mediainfoview> <!-- NewPP limit report Parsed by mw‐api‐ext.codfw.main‐568576b95‐sbmbn Cached time: 20241109203507 Cache expiry: 2592000 Reduced expiry: false Complications: [] CPU time usage: 0.056 seconds Real time usage: 0.089 seconds Preprocessor visited node count: 135/1000000 Post‐expand include size: 16911/2097152 bytes Template argument size: 1315/2097152 bytes Highest expansion depth: 11/100 Expensive parser function count: 0/500 Unstrip recursion depth: 0/20 Unstrip post‐expand size: 0/5000000 bytes Lua time usage: 0.023/10.000 seconds Lua memory usage: 835457/52428800 bytes Number of Wikibase entities loaded: 1/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 71.539 1 Template:Information 100.00% 71.539 1 -total 39.69% 28.395 1 Template:PD-NIOSH 19.30% 13.807 1 Template:PD-USGov-HHS-NIOSH/layout 8.02% 5.736 1 Template:En 7.49% 5.357 1 Template:PD-USGov-HHS-NIOSH/lang 4.33% 3.095 1 Template:PD-Layout 2.61% 1.864 1 Template:Edit 2.60% 1.863 1 Template:Lang 1.77% 1.263 1 Template:License_template_tag --> <!-- Saved in parser cache with key commonswiki:pcache:idhash:88408238-0!wb=3!wbMobile=0 and timestamp 20241109203507 and revision id 675289052. Rendering was triggered because: unknown --> </div></div> <h2 id="filehistory">File history</h2> <div id="mw-imagepage-section-filehistory"> <p>Click on a date/time to view the file as it appeared at that time. </p> <table class="wikitable filehistory"> <tr><th></th><th>Date/Time</th><th>Thumbnail</th><th>Dimensions</th><th>User</th><th>Comment</th></tr> <tr><td>current</td><td class="filehistory-selected" style="white-space: nowrap;"><a href="//upload.wikimedia.org/wikipedia/commons/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf">05:01, 21 March 2020</a></td><td><a href="//upload.wikimedia.org/wikipedia/commons/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf"><img alt="Thumbnail for version as of 05:01, 21 March 2020" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf/page1-77px-Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf.jpg" decoding="async" loading="lazy" width="77" height="120" data-file-width="1650" data-file-height="2550" /></a></td><td>1,650 × 2,550 <span style="white-space: nowrap;">(227 KB)</span></td><td><a href="/wiki/User:John_P._Sadowski_(NIOSH)" class="mw-userlink" title="User:John P. Sadowski (NIOSH)"><bdi>John P. Sadowski (NIOSH)</bdi></a></td><td dir="ltr">Transferred from https://www.cdc.gov/niosh/npptl/pdfs/UnderstandDifferenceInfographic-508.pdf</td></tr> </table> </div> <h2 id="filelinks">File usage</h2> <div id='mw-imagepage-section-linkstoimage'> <p>The following 6 pages use this file: </p><ul class="mw-imagepage-linkstoimage"> <li class="mw-imagepage-linkstoimage-ns0"><a href="/wiki/N95_respirator" title="N95 respirator">N95 respirator</a></li> <li class="mw-imagepage-linkstoimage-ns0"><a href="/wiki/Respirator" title="Respirator">Respirator</a></li> <li class="mw-imagepage-linkstoimage-ns0"><a href="/wiki/Workplace_hazard_controls_for_COVID-19" title="Workplace hazard controls for COVID-19">Workplace hazard controls for COVID-19</a></li> <li class="mw-imagepage-linkstoimage-ns2"><a href="/wiki/User:Antony-22/Gallery/Others" title="User:Antony-22/Gallery/Others">User:Antony-22/Gallery/Others</a></li> <li class="mw-imagepage-linkstoimage-ns2"><a href="/wiki/User:Falharb3/Respirator" title="User:Falharb3/Respirator">User:Falharb3/Respirator</a></li> <li class="mw-imagepage-linkstoimage-ns2"><a href="/wiki/User:Randomsalt/N95_respirator_article_progress" title="User:Randomsalt/N95 respirator article progress">User:Randomsalt/N95 respirator article progress</a></li> </ul> </div> <h2 id="globalusage">Global file usage</h2> <div id="mw-imagepage-section-globalusage"><p>The following other wikis use this file: </p><ul> <li class='mw-gu-onwiki-ar_wikipedia_org'>Usage on ar.wikipedia.org <ul> <li><a class="external" href="https://ar.wikipedia.org/wiki/%D9%82%D9%86%D8%A7%D8%B9_%D9%8695">قناع ن95</a></li> </ul></li> <li class='mw-gu-onwiki-cs_wikipedia_org'>Usage on cs.wikipedia.org <ul> <li><a class="external" href="https://cs.wikipedia.org/wiki/Respir%C3%A1tor_N95">Respirátor N95</a></li> </ul></li> <li class='mw-gu-onwiki-fr_wikipedia_org'>Usage on fr.wikipedia.org <ul> <li><a class="external" href="https://fr.wikipedia.org/wiki/Masque_N95">Masque N95</a></li> </ul></li> <li class='mw-gu-onwiki-hy_wikipedia_org'>Usage on hy.wikipedia.org <ul> <li><a class="external" href="https://hy.wikipedia.org/wiki/%D5%84%D5%A1%D5%BD%D5%B6%D5%A1%D5%AF%D5%AB%D6%81:VSGrigorian/%D4%B1%D5%BE%D5%A1%D5%A6%D5%A1%D6%80%D5%AF%D5%B2">Մասնակից:VSGrigorian/Ավազարկղ</a></li> </ul></li> <li class='mw-gu-onwiki-it_wikipedia_org'>Usage on it.wikipedia.org <ul> <li><a class="external" href="https://it.wikipedia.org/wiki/Maschera_antipolvere">Maschera antipolvere</a></li> </ul></li> <li class='mw-gu-onwiki-ja_wikibooks_org'>Usage on ja.wikibooks.org <ul> <li><a class="external" href="https://ja.wikibooks.org/wiki/%E5%88%A9%E7%94%A8%E8%80%85:%E3%82%A2%E3%83%A9%E3%83%93%E3%82%A2%E8%AA%9E%E3%81%A1%E3%82%83%E3%82%93%E3%81%AD%E3%82%8B/%E3%82%A2%E3%83%A9%E3%83%93%E3%82%A2%E8%AA%9E%E3%81%AE%E7%94%BB%E5%83%8F%E7%B4%A0%E6%9D%90%E9%9B%86">利用者:アラビア語ちゃんねる/アラビア語の画像素材集</a></li> </ul></li> <li class='mw-gu-onwiki-no_wikipedia_org'>Usage on no.wikipedia.org <ul> <li><a class="external" href="https://no.wikipedia.org/wiki/%C3%85ndedrettsvern">Åndedrettsvern</a></li> </ul></li> <li class='mw-gu-onwiki-pt_wikipedia_org'>Usage on pt.wikipedia.org <ul> <li><a class="external" href="https://pt.wikipedia.org/wiki/Controle_de_riscos_para_COVID-19_no_ambiente_de_trabalho">Controle de riscos para COVID-19 no ambiente de trabalho</a></li> </ul></li> <li class='mw-gu-onwiki-sv_wikipedia_org'>Usage on sv.wikipedia.org <ul> <li><a class="external" href="https://sv.wikipedia.org/wiki/Andningsskydd">Andningsskydd</a></li> <li><a class="external" href="https://sv.wikipedia.org/wiki/Munskydd_(sjukv%C3%A5rd)">Munskydd (sjukvård)</a></li> </ul></li> <li class='mw-gu-onwiki-test_wikipedia_org'>Usage on test.wikipedia.org <ul> <li><a class="external" href="https://test.wikipedia.org/wiki/User:Randomsalt/sandbox/N95_respirator">User:Randomsalt/sandbox/N95 respirator</a></li> </ul></li> <li class='mw-gu-onwiki-th_wikipedia_org'>Usage on th.wikipedia.org <ul> <li><a class="external" href="https://th.wikipedia.org/wiki/%E0%B8%AB%E0%B8%99%E0%B9%89%E0%B8%B2%E0%B8%81%E0%B8%B2%E0%B8%81%E0%B9%80%E0%B8%AD%E0%B9%87%E0%B8%99_95">หน้ากากเอ็น 95</a></li> </ul></li> <li class='mw-gu-onwiki-vi_wikipedia_org'>Usage on vi.wikipedia.org <ul> <li><a class="external" href="https://vi.wikipedia.org/wiki/Ki%E1%BB%83m_so%C3%A1t_nguy_c%C6%A1_n%C6%A1i_l%C3%A0m_vi%E1%BB%87c_v%E1%BB%9Bi_COVID-19">Kiểm soát nguy cơ nơi làm việc với COVID-19</a></li> </ul></li> <li class='mw-gu-onwiki-zh_wikipedia_org'>Usage on zh.wikipedia.org <ul> <li><a class="external" href="https://zh.wikipedia.org/wiki/N95%E5%8F%A3%E7%BD%A9">N95口罩</a></li> </ul></li> </ul> </div><h2 id="metadata">Metadata</h2> <div class="mw-content-ltr mw-imagepage-section-metadata" lang="en" dir="ltr"><p>This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. </p><p> If the file has been modified from its original state, some details may not fully reflect the modified file.</p><table id="mw_metadata" class="mw_metadata collapsed"> <tbody><tr class="exif-objectname"><th>Short title</th><td>Infographic - Understanding the Difference, Surgical Mask, N95 Respirator</td></tr><tr class="exif-imagedescription"><th>Image title</th><td>Infographic - Understanding the Difference, Surgical Mask, N95 Respirator</td></tr><tr class="exif-artist"><th>Author</th><td>CDC, NIOSH, NPPTL</td></tr><tr class="exif-keywords mw-metadata-collapsible"><th>Keywords</th><td><ul><li>Infographic</li> <li>-</li> <li>Understanding</li> <li>the</li> <li>Difference,</li> <li>Surgical</li> <li>Mask,</li> <li>N95</li> <li>Respirator</li></ul></td></tr><tr class="exif-software mw-metadata-collapsible"><th>Software used</th><td><a href="/w/index.php?title=Adobe_InDesign_CS6_(Windows)&action=edit&redlink=1" class="new" title="Adobe InDesign CS6 (Windows) (page does not exist)">Adobe InDesign CS6 (Windows)</a></td></tr><tr class="exif-pdf-producer mw-metadata-collapsible"><th>Conversion program</th><td>Adobe PDF Library 10.0.1</td></tr><tr class="exif-pdf-encrypted mw-metadata-collapsible"><th>Encrypted</th><td>no</td></tr><tr class="exif-pdf-pagesize mw-metadata-collapsible"><th>Page size</th><td>792 x 1224 pts</td></tr><tr class="exif-pdf-version mw-metadata-collapsible"><th>Version of PDF format</th><td>1.6</td></tr></tbody></table> </div><!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf">https://en.wikipedia.org/wiki/File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf</a>"</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:About">About Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers</a></li> <li id="footer-places-contact"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//en.m.wikipedia.org/w/index.php?title=File:Understanding_the_difference_between_surgical_masks_and_N95_respirators.pdf&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-g5pcr","wgBackendResponseTime":234,"wgPageParseReport":{"limitreport":{"cputime":"0.002","walltime":"0.002","ppvisitednodes":{"value":4,"limit":1000000},"postexpandincludesize":{"value":0,"limit":2097152},"templateargumentsize":{"value":0,"limit":2097152},"expansiondepth":{"value":1,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":0,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 0.000 1 -total"]},"cachereport":{"origin":"mw-web.codfw.main-f69cdc8f6-g5pcr","timestamp":"20241123213624","ttl":2592000,"transientcontent":false}}});});</script> </body> </html>