Quick Indoor CO2 (QICO2) Tool

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nist-page__region--content-top"> <div class="nist-block"> <a class="usa-button usa-button--accent-cool" href="/web/20231202021252/https://www.nist.gov/services-resources/software">SOFTWARE</a> </div> <div class="nist-block"> <h1 class="nist-page__title">Quick Indoor CO2 (QICO2) Tool</h1> </div> </div> </div> <div class="grid-container margin-top-4"> <div class="grid-row grid-gap-6"> <aside class="nist-page__region nist-page__region--sidebar-second-top-mobile grid-col-12"> <div class="gray-box"> <div class="views-element-container nist-block"> <div><div class="js-view-dom-id-1f5c0ce70d209db41d8d61bf4b63267acaba63123855a521d56837a67487486b"> </div> </div> </div> <div class="nist-block"> <div class="nist-field nist-field--label-above string"> <h3 class="nist-field__label">Type of Software</h3> <div class="nist-field__item">Web Application</div> </div> </div> <div class="nist-block"> <div class="nist-field nist-field--label-above daterange"> <h3 class="nist-field__label">Last Updated</h3> <div class="nist-field__item"><time datetime="2022-04-08T12:00:00Z">2022-04-08</time> </div> </div> </div> <div class="nist-block"> <div class="nist-field nist-field--label-above nist-field--link-list entity-reference"> <h3 class="nist-field__label">NIST Author</h3> <div class="nist-field__items"> <div class="nist-field__item"><a href="/web/20231202021252/https://www.nist.gov/people/andrew-k-persily" hreflang="en">Andrew K. Persily</a></div> <div class="nist-field__item"><a href="/web/20231202021252/https://www.nist.gov/people/brian-polidoro" hreflang="en">Brian Polidoro</a></div> </div> </div> </div> </div> </aside> <div class="nist-page__region nist-page__region--content tablet-lg:grid-col-8"> <div class="nist-block"> <div class="text-with-summary"> <div class="margin-left-4 margin-bottom-2 align-right"> <figure class="nist-image"> <img src="/web/20231202021252im_/https://www.nist.gov/sites/default/files/styles/480_x_480_limit/public/images/2022/02/17/spheres-g954f9252c_1920.jpg?itok=dC9tBYcv" width="480" height="320" alt="CO2" loading="lazy" typeof="foaf:Image"/> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> </div> </figcaption> </figure> </div> <p><span><span><span>This tool is used for implementing the CO<sub>2</sub> concentration calculations.聽聽After providing the relevant inputs, or selecting from a number of predefined cases, the QICO2 tool allows the user to estimate indoor CO<sub>2</sub> concentrations in a ventilated space at steady-state, 1 h after occupancy and at a selected value of <em>t<sub>metric</sub></em>. These calculated concentrations can be compared with measured CO<sub>2</sub> concentrations in a building or space to evaluate whether the intended or required ventilation rate is actually being achieved. </span></span></span></p> <p class="text-align-center"><a class="usa-button usa-button--full" href="https://web.archive.org/web/20231202021252/https://pages.nist.gov/CONTAM-apps/webapps/CO2Tool/#/">Access the Quick Indoor CO2 (QICO2) Tool</a></p> <p>聽</p> </div> </div> <div class="nist-block"> <h2 class="nist-block__title">Sample Screenshots</h2> <div class="nist-field nist-field--label-hidden entity-reference"> <div class="nist-field__items"> <div class="nist-field__item"> <figure class="nist-image"> <img src="/web/20231202021252im_/https://www.nist.gov/sites/default/files/styles/960_x_960_limit/public/images/2022/02/17/Picture1.png?itok=4OdbIP2U" width="936" height="784" alt="Snapshot CO2" loading="lazy" typeof="foaf:Image"/> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> </div> </figcaption> </figure> </div> </div> </div> </div> <div class="nist-block">  <div data-elastic-exclude="" class="nist-tags"> <a href="/web/20231202021252/https://www.nist.gov/topic-terms/environment" hreflang="en">Environment</a>, <a href="/web/20231202021252/https://www.nist.gov/topic-terms/air-water-soil-quality" hreflang="en">Air / water / soil quality</a> and <a href="/web/20231202021252/https://www.nist.gov/topic-terms/environmental-health" hreflang="en">Environmental health</a></div>  </div> </div> <aside class="nist-page__region nist-page__region--sidebar-second tablet-lg:grid-col-4"> <div class="nist-page__region nist-page__region--sidebar-second-top gray-box"> <div class="views-element-container nist-block"> <div><div class="js-view-dom-id-1f5c0ce70d209db41d8d61bf4b63267acaba63123855a521d56837a67487486b"> </div> </div> </div> <div class="nist-block"> <div class="nist-field nist-field--label-above string"> <h3 class="nist-field__label">Type of Software</h3> <div class="nist-field__item">Web Application</div> </div> </div> <div class="nist-block"> <div class="nist-field nist-field--label-above daterange"> <h3 class="nist-field__label">Last Updated</h3> <div class="nist-field__item"><time datetime="2022-04-08T12:00:00Z">2022-04-08</time> </div> </div> </div> <div class="nist-block"> <div class="nist-field nist-field--label-above nist-field--link-list entity-reference"> <h3 class="nist-field__label">NIST Author</h3> <div class="nist-field__items"> <div class="nist-field__item"><a href="/web/20231202021252/https://www.nist.gov/people/andrew-k-persily" hreflang="en">Andrew K. Persily</a></div> <div class="nist-field__item"><a href="/web/20231202021252/https://www.nist.gov/people/brian-polidoro" hreflang="en">Brian Polidoro</a></div> </div> </div> </div> </div> <div>  <div class="views-element-container nist-block nist-block--org" data-elastic-exclude=""> <h2 class="nist-block__title">Organizations</h2> <div><div class="js-view-dom-id-d80a45f0d6fe698b3448edc639e5c47633e47dae39ce70c83ce6e03d017baa75"> <div class="nist-related-orgs"><div class="term-tree-list"> <ul class="term"><li><a href="/web/20231202021252/https://www.nist.gov/nist-organizations/nist-headquarters" class="unselected" hreflang="en">NIST Headquarters</a></li><li><ul class="term"><li><a href="/web/20231202021252/https://www.nist.gov/nist-organizations/nist-headquarters/laboratory-programs" class="unselected" hreflang="en">Laboratory Programs</a></li><li><ul class="term"><li><a href="/web/20231202021252/https://www.nist.gov/nist-organizations/nist-headquarters/laboratory-programs/engineering-laboratory" class="unselected" hreflang="en">Engineering Laboratory</a></li><li><ul class="term"><li><a href="/web/20231202021252/https://www.nist.gov/nist-organizations/nist-headquarters/laboratory-programs/engineering-laboratory/building-energy-and" class="unselected" hreflang="en">Building Energy and Environment Division</a></li><li><ul class="term"><li><a href="/web/20231202021252/https://www.nist.gov/nist-organizations/nist-headquarters/laboratory-programs/engineering-laboratory/building-energy-0" class="selected" hreflang="en">Indoor Air Quality and Ventilation Group</a></li></ul></li></ul></li></ul></li></ul></li></ul> </div> </div> </div> </div> </div>  <div class="nist-block"> <h2 class="nist-block__title">System/Platform Requirements</h2> <div class="text-long"><p>Current Browser: Firefox, Chrome, Edge, Safari</p></div> </div> <div class="nist-block"> <h2 class="nist-block__title">Download Information</h2> <div class="text-long"><p><a href="https://web.archive.org/web/20231202021252/https://pages.nist.gov/CONTAM-apps/webapps/CO2Tool/#/">https://pages.nist.gov/CONTAM-apps/webapps/CO2Tool/#/聽</a></p></div> </div> <div class="nist-block"> <h2 class="nist-block__title">Documentation/User Guide</h2> <div class="text-long"><p><a href="https://web.archive.org/web/20231202021252/https://doi.org/10.6028/NIST.TN.2213">https://doi.org/10.6028/NIST.TN.2213</a>聽</p></div> </div> </div> </aside> </div> </div> <div class="grid-container"> <div class="nist-page__region nist-page__region--content-bottom"> <div class="nist-block nist-block--contact"> <h2 class="nist-block__title">Contact</h2> <div class="nist-contact"> <ul class="nist-contact__items"> <li about="/people/andrew-k-persily" class="nist-contact__item"> <div class="nist-contact__name"><a href="/web/20231202021252/https://www.nist.gov/people/andrew-k-persily" title="View staff profile page">Andrew K. Persily</a></div> <div> <a href="https://web.archive.org/web/20231202021252/mailto:andrew.persily@nist.gov">andrew.persily@nist.gov</a> </div> <div> (301) 975-6418 </div> </li> <li about="/people/brian-polidoro" class="nist-contact__item"> <div class="nist-contact__name"><a href="/web/20231202021252/https://www.nist.gov/people/brian-polidoro" title="View staff profile page">Brian Polidoro</a></div> <div> <a href="https://web.archive.org/web/20231202021252/mailto:brian.polidoro@nist.gov">brian.polidoro@nist.gov</a> </div> <div> (301) 975-6445 </div> </li> </ul> </div> </div> <div class="nist-block"> <div class="text-italic font-sans-2xs"> Created February 17, 2022, Updated June 9, 2022 </div> </div> </div> </div> </section> </div> <div data-elastic-exclude>  <footer class="nist-footer padding-bottom-4"> <div class="grid-container nist-footer__info"> <div class="grid-row"> <div class="tablet:grid-col-6"> <div class="nist-footer__logo"> <a href="/web/20231202021252/https://www.nist.gov/" title="National Institute of Standards and Technology" rel="home"> <img class="nist-footer__logo-img" src="/web/20231202021252im_/https://www.nist.gov/libraries/nist-component-library/dist/img/logo/NIST-Logo-Brand-White.svg" alt="National Institute of Standards and Technology logo" width="300px" height="42px"/> </a> </div> <div class="nist-footer__contact"> <h3 class="nist-footer__contact-heading">HEADQUARTERS</h3> <address> 100 Bureau Drive<br> Gaithersburg, MD 20899<br> <a href="https://web.archive.org/web/20231202021252/tel:301-975-2000">301-975-2000</a> </address> <p> <a href="https://web.archive.org/web/20231202021252/mailto:do-webmaster@nist.gov">Webmaster</a> | <a href="https://web.archive.org/web/20231202021252/https://www.nist.gov/about-nist/contact-us">Contact Us</a> | <a href="https://web.archive.org/web/20231202021252/https://www.nist.gov/visit">Our Other Offices</a> </p> </div> </div> <div class="tablet:grid-col-6"> <div class="nist-footer__social-links"> <a class="nist-social nist-social--twitter-white" href="https://web.archive.org/web/20231202021252/https://twitter.com/NIST"> <span>Twitter</span> </a> <a class="nist-social nist-social--facebook-white" href="https://web.archive.org/web/20231202021252/https://www.facebook.com/NIST"> <span>Facebook</span> </a> <a class="nist-social nist-social--linkedin-white" href="https://web.archive.org/web/20231202021252/https://www.linkedin.com/company/nist"> <span>LinkedIn</span> </a> <a class="nist-social nist-social--instagram-white" href="https://web.archive.org/web/20231202021252/https://www.instagram.com/nist/"> <span>Instagram</span> </a> <a class="nist-social nist-social--youtube-white" href="https://web.archive.org/web/20231202021252/https://www.youtube.com/NIST"> <span>YouTube</span> </a> <a class="nist-social nist-social--giphy-white" href="https://web.archive.org/web/20231202021252/https://giphy.com/nist"> <span>Giphy</span> </a> <a class="nist-social nist-social--rss-white" href="https://web.archive.org/web/20231202021252/https://www.nist.gov/news-events/nist-rss-feeds"> <span>RSS Feed</span> </a> <a class="nist-social nist-social--envelope-white" href="https://web.archive.org/web/20231202021252/https://public.govdelivery.com/accounts/USNIST/subscriber/new"> <span>Mailing List</span> </a> </div> <div class="nist-footer__feedback"> How are we doing? 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