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window.loswp.willEdgeCache = false; window.loswp.work = {"work":{"id":52419909,"created_at":"2021-09-15T03:23:47.382-07:00","from_world_paper_id":173076839,"updated_at":"2024-11-23T19:07:03.898-08:00","_data":{"publisher":"Informa UK Limited","grobid_abstract":"entitled \"Innovative polymer and carbon materials for protection of respiratory system against nanoparticles, steams and gases\".","publication_date":"2013,,","publication_name":"International Journal of Occupational Safety and Ergonomics","grobid_abstract_attachment_id":"69691090"},"document_type":"paper","pre_hit_view_count_baseline":null,"quality":"high","language":"en","title":"Efficiency of Filtering Materials Used in Respiratory Protective Devices Against Nanoparticles","broadcastable":true,"draft":null,"has_indexable_attachment":true,"indexable":true}}["work"]; window.loswp.workCoauthors = [37641972]; window.loswp.locale = "en"; window.loswp.countryCode = "SG"; window.loswp.cwvAbTestBucket = ""; 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Agnieszka Brochocka" class="ds-work-card--author-avatar" src="//a.academia-assets.com/images/s65_no_pic.png" />Agnieszka Brochocka</a></div><div class="ds-work-card--detail"><p class="ds-work-card--detail ds2-5-body-sm">2013, International Journal of Occupational Safety and Ergonomics</p><div class="ds-work-card--work-metadata"><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">visibility</span><p class="ds2-5-body-sm" id="work-metadata-view-count">…</p></div><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">description</span><p class="ds2-5-body-sm">12 pages</p></div><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">link</span><p class="ds2-5-body-sm">1 file</p></div></div><script>(async () => { const workId = 52419909; const worksViewsPath = 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The study also aimed to show an applied perspective for future research on this important subject.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Improvement of performance and function in respiratory protection equipment using nanomaterials","attachmentId":85624398,"attachmentType":"pdf","work_url":"https://www.academia.edu/78649932/Improvement_of_performance_and_function_in_respiratory_protection_equipment_using_nanomaterials","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/78649932/Improvement_of_performance_and_function_in_respiratory_protection_equipment_using_nanomaterials"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="1" data-entity-id="9503474" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/9503474/Respiratory_protection_against_airborne_nanoparticles_a_review">Respiratory protection against airborne nanoparticles: a review</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="22280917" href="https://independent.academia.edu/SamyRengasamy">Samy Rengasamy</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Nanoparticle Research, 2009</p><p class="ds-related-work--abstract ds2-5-body-sm">As a precautionary measure, it is often recommended that workers take steps to reduce their exposure to airborne nanoparticles through the use of respiratory protective devices. The purpose of this study was to provide a review and analysis of the research literature and current recommendations on respirators used for protection against nanoparticles. Key research findings were that studies with particles as small as 4 nm have shown that conventional single-fiber filtration theory can be used to describe the filtration performance of respirators and that the most penetrating particle size for respirators equipped with commonly used electrostatic filter media is in the range of 30–100 nm. Future research needs include human laboratory and workplace protection factor studies to measure the respirator total inward leakage of nanoparticles. Industrial hygienists and safety professionals should continue to use traditional respirator selection guidance for workers exposed to nanoparticles.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Respiratory protection against airborne nanoparticles: a review","attachmentId":47752870,"attachmentType":"pdf","work_url":"https://www.academia.edu/9503474/Respiratory_protection_against_airborne_nanoparticles_a_review","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/9503474/Respiratory_protection_against_airborne_nanoparticles_a_review"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="2" data-entity-id="75158077" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/75158077/Development_of_a_Procedure_to_Measure_the_Effectiveness_of_N95_Respirator_Filters_against_Nanoparticles">Development of a Procedure to Measure the Effectiveness of N95 Respirator Filters against Nanoparticles</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="32472766" href="https://concordia.academia.edu/FHaghighat">Fariborz Haghighat</a></div><p class="ds-related-work--metadata ds2-5-body-xs">2012</p><p class="ds-related-work--abstract ds2-5-body-sm">There is an increasing concern about the potential health hazards posed to workers exposed to inhalation of nanoparticles (NPs). Common sources of nanoparticles in working environments include fumes and exhausts from different processes like laser ablation and milling. Nanoparticles have potential toxic properties: a high particle surface area, number concentration, and surface reactivity. Inhalation, the most common route of nanoparticle exposure, has been shown to cause adverse effects on pulmonary functions, and the deposited particles in the lung can be translocated to the blood system by passing through the pulmonary protection barriers. Filtration is the simplest and most common method of aerosol control. It is widely used in mechanical ventilation and respiratory protection. However, concerns have been raised regarding the effectiveness of filters for capturing nanoparticles.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Development of a Procedure to Measure the Effectiveness of N95 Respirator Filters against Nanoparticles","attachmentId":83040021,"attachmentType":"pdf","work_url":"https://www.academia.edu/75158077/Development_of_a_Procedure_to_Measure_the_Effectiveness_of_N95_Respirator_Filters_against_Nanoparticles","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/75158077/Development_of_a_Procedure_to_Measure_the_Effectiveness_of_N95_Respirator_Filters_against_Nanoparticles"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="3" data-entity-id="6581095" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/6581095/SPECIAL_ISSUE_ENVIRONMENTAL_AND_HUMAN_EXPOSURE_OF_NANOMATERIALS_Respiratory_protection_against_airborne_nanoparticles_a_review">SPECIAL ISSUE: ENVIRONMENTAL AND HUMAN EXPOSURE OF NANOMATERIALS Respiratory protection against airborne nanoparticles: a review</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="10588352" href="https://independent.academia.edu/GriffinScott">Scott Griffin</a></div><p class="ds-related-work--abstract ds2-5-body-sm">As a precautionary measure, it is often recommended that workers take steps to reduce their exposure to airborne nanoparticles through the use of respiratory protective devices. The purpose of this study was to provide a review and analysis of the research literature and current recommendations on respirators used for protection against nanoparticles. Key research findings were that studies with particles as small as 4 nm have shown that conventional single-fiber filtration theory can be used to describe the filtration performance of respirators and that the most penetrating particle size for respirators equipped with commonly used electrostatic filter media is in the range of 30-100 nm. Future research needs include human laboratory and workplace protection factor studies to measure the respirator total inward leakage of nanoparticles. Industrial hygienists and safety professionals should continue to use traditional respirator selection guidance for workers exposed to nanoparticles.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"SPECIAL ISSUE: ENVIRONMENTAL AND HUMAN EXPOSURE OF NANOMATERIALS Respiratory protection against airborne nanoparticles: a review","attachmentId":33335408,"attachmentType":"pdf","work_url":"https://www.academia.edu/6581095/SPECIAL_ISSUE_ENVIRONMENTAL_AND_HUMAN_EXPOSURE_OF_NANOMATERIALS_Respiratory_protection_against_airborne_nanoparticles_a_review","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/6581095/SPECIAL_ISSUE_ENVIRONMENTAL_AND_HUMAN_EXPOSURE_OF_NANOMATERIALS_Respiratory_protection_against_airborne_nanoparticles_a_review"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="4" data-entity-id="87137151" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/87137151/Performance_of_mechanical_filters_used_in_general_ventilation_against_nanoparticles">Performance of mechanical filters used in general ventilation against nanoparticles</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="32529430" href="https://concordia.academia.edu/AliBahloul">Ali Bahloul</a></div><p class="ds-related-work--metadata ds2-5-body-xs">IOP Conference Series: Materials Science and Engineering, 2019</p><p class="ds-related-work--abstract ds2-5-body-sm">Filtration is a simple and effective way to capture particles of different sizes. According to ANSI/ASHRAE 52.2 standard, ventilation filters efficiency is tested for particles ranging from 0.3 to 10.0 μm. To our knowledge, performances of entire filters for nanoparticles are still very limited and particle size of 300 nm is commonly used as the Most Particle Penetration Size (for mechanical media). In order to evaluate the filter performance for nanoparticles, five type of filters (from MERV 8 to HEPA) were evaluated via two measurements: penetration and pressure drop. Results are consistent with previous experimental measurements on media and entire filters. These data show that the range of 150 to 500 nm is a better estimation of the MPPS, unlike the fixed diameter of 300 nm.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Performance of mechanical filters used in general ventilation against nanoparticles","attachmentId":91433685,"attachmentType":"pdf","work_url":"https://www.academia.edu/87137151/Performance_of_mechanical_filters_used_in_general_ventilation_against_nanoparticles","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/87137151/Performance_of_mechanical_filters_used_in_general_ventilation_against_nanoparticles"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="5" data-entity-id="9503484" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/9503484/Simple_Respiratory_Protection_Evaluation_of_the_Filtration_Performance_of_Cloth_Masks_and_Common_Fabric_Materials_Against_20_1000_nm_Size_Particles">Simple Respiratory Protection--Evaluation of the Filtration Performance of Cloth Masks and Common Fabric Materials Against 20-1000 nm Size Particles</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="22280917" href="https://independent.academia.edu/SamyRengasamy">Samy Rengasamy</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Annals of Occupational Hygiene, 2010</p><p class="ds-related-work--abstract ds2-5-body-sm">A shortage of disposable filtering facepiece respirators can be expected during a pandemic respiratory infection such as influenza A. Some individuals may want to use common fabric materials for respiratory protection because of shortage or affordability reasons. To address the filtration performance of common fabric materials against nano-size particles including viruses, five major categories of fabric materials including sweatshirts, T-shirts, towels, scarves, and cloth masks were tested for polydisperse and monodisperse aerosols (20-1000 nm) at two different face velocities (5.5 and 16.5 cm s 21 ) and compared with the penetration levels for N95 respirator filter media. The results showed that cloth masks and other fabric materials tested in the study had 40-90% instantaneous penetration levels against polydisperse NaCl aerosols employed in the National Institute for Occupational Safety and Health particulate respirator test protocol at 5.5 cm s 21 . Similarly, varying levels of penetrations (9-98%) were obtained for different size monodisperse NaCl aerosol particles in the 20-1000 nm range. The penetration levels of these fabric materials against both polydisperse and monodisperse aerosols were much higher than the penetrations for the control N95 respirator filter media. At 16.5 cm s 21 face velocity, monodisperse aerosol penetrations slightly increased, while polydisperse aerosol penetrations showed no significant effect except one fabric mask with an increase. Results obtained in the study show that common fabric materials may provide marginal protection against nanoparticles including those in the size ranges of virus-containing particles in exhaled breath.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Simple Respiratory Protection--Evaluation of the Filtration Performance of Cloth Masks and Common Fabric Materials Against 20-1000 nm Size Particles","attachmentId":47752815,"attachmentType":"pdf","work_url":"https://www.academia.edu/9503484/Simple_Respiratory_Protection_Evaluation_of_the_Filtration_Performance_of_Cloth_Masks_and_Common_Fabric_Materials_Against_20_1000_nm_Size_Particles","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/9503484/Simple_Respiratory_Protection_Evaluation_of_the_Filtration_Performance_of_Cloth_Masks_and_Common_Fabric_Materials_Against_20_1000_nm_Size_Particles"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="6" data-entity-id="111174735" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/111174735/Filtration_of_nanoparticles_applied_in_general_ventilation">Filtration of nanoparticles applied in general ventilation</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="32529430" href="https://concordia.academia.edu/AliBahloul">Ali Bahloul</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Science and Technology for the Built Environment, 2018</p><p class="ds-related-work--abstract ds2-5-body-sm">Nanoparticles (NP) are particles with a diameter less than or equal to 100 nm. Because of their size, they pose a major challenge to workers' health and safety. General ventilation is one of the solutions in order to minimize both occupational and general exposure. In North America, ventilation filters are tested according to ANSI/ASHRAE Standard 52.2 and rated according to their efficiency results as a function of particle diameter. The most penetrating particle size (MPPS) is commonly accepted as being 300 nm, but it no longer represents the worst-case scenario in terms of particle diameter and filter penetration. The purpose of this paper is to compile an inventory of experimental knowledge on the performance of entire filters and their media. The scope of this experimental literature review is limited to studies of sizeresolved penetration of media and entire filters published since 1980. Little information is available on size-resolved data for filters. The paper also seeks to identify different trends by medium properties, particle properties and operating conditions, particularly in terms of penetration and MPPS. These trends are already known for media, but more studies are still needed to determine whether the conclusions for media can be extrapolated to entire filters.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Filtration of nanoparticles applied in general ventilation","attachmentId":108777215,"attachmentType":"pdf","work_url":"https://www.academia.edu/111174735/Filtration_of_nanoparticles_applied_in_general_ventilation","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/111174735/Filtration_of_nanoparticles_applied_in_general_ventilation"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="7" data-entity-id="52419918" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/52419918/Efficiency_of_Electret_Polycarbonate_Nonwovens_in_Respiratory_Protection_Against_Nanoparticles">Efficiency of Electret Polycarbonate Nonwovens in Respiratory Protection Against Nanoparticles</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="37641972" href="https://independent.academia.edu/AgnieszkaBrochocka">Agnieszka Brochocka</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Autex Research Journal</p><p class="ds-related-work--abstract ds2-5-body-sm">Toxicological research on the influence of noxious nanoparticles on human health indicates the need to develop efficient protective devices. In particular, this concerns respiratory protective equipment employing filtration nonwovens. This paper presents a methodology for the improvement of the filtration efficiency of electret nonwovens against nanoparticles by enriching amorphous polycarbonate (PC) with additives of different electrostatic potentials. We introduced perlite granules (positive charge) and amber granules (negative charge) to the polymer stream in melt-blown technology. Filtration efficiency was assessed by a standard method using paraffin oil and sodium chloride aerosol, as well as by a non-standard method using NaCl nanoparticles. The experiments showed that strengthening the effects of electrostatic forces by the introduction of modifiers is a promising approach to improving the efficiency of electret nonwovens against nanoparticles.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Efficiency of Electret Polycarbonate Nonwovens in Respiratory Protection Against Nanoparticles","attachmentId":69691085,"attachmentType":"pdf","work_url":"https://www.academia.edu/52419918/Efficiency_of_Electret_Polycarbonate_Nonwovens_in_Respiratory_Protection_Against_Nanoparticles","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/52419918/Efficiency_of_Electret_Polycarbonate_Nonwovens_in_Respiratory_Protection_Against_Nanoparticles"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="8" data-entity-id="84886843" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/84886843/Application_of_nanofilters_for_ventilation">Application of nanofilters for ventilation</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="179979849" href="https://vutbr.academia.edu/OlgaRubinov%C3%A1">Olga Rubinová</a></div><p class="ds-related-work--metadata ds2-5-body-xs">International Review of Applied Sciences and Engineering, 2019</p><p class="ds-related-work--abstract ds2-5-body-sm">Nanotechnology is a perspective manufacturing technology, and in the technical fields, it deals with the production, development and utilization of technologies and materials with dimensions in nanometre sizes (1–100 nm). Nanofilters used in the article for filtration purposes consist from a nanolayer which is applied to a coarse textile backing layer, and they are inserted into the frames as conventional textile filters. The most commonly used materials are PP and PE polymers, as well as carbon, glass and metal filters. With the fabrication of nanotechnology-based filter, it is very important to choose materials, polymers with specific properties, which can be used for filtration function of the product itself. The results given in the main article compare the nanofilters with the main representatives of existing filter products currently available on the market. There is a problem with high pressure loss of the nanomaterial, and when we compare them with traditional filters, it is...</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Application of nanofilters for ventilation","attachmentId":89759845,"attachmentType":"pdf","work_url":"https://www.academia.edu/84886843/Application_of_nanofilters_for_ventilation","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/84886843/Application_of_nanofilters_for_ventilation"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="9" data-entity-id="13219318" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/13219318/Performance_of_Mechanical_Filters_and_Respirators_for_Capturing_Nanoparticles_Limitations_and_Future_Direction">Performance of Mechanical Filters and Respirators for Capturing Nanoparticles ―Limitations and Future Direction</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="32472216" href="https://concordia.academia.edu/FariborzHaghighat">Fariborz Haghighat</a><span>, </span><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="32529430" href="https://concordia.academia.edu/AliBahloul">Ali Bahloul</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Industrial Health, 2010</p><p class="ds-related-work--abstract ds2-5-body-sm">There is an increasing concern about the health hazard posed to workers exposed to inhalation of nanoparticles. Inhaling nanoparticles posses an occupational hazard due to elevated amount emitted to the atmosphere and working environment. Nanoparticles have potential toxic properties: the high particle surface area, number concentration, and surface reactivity. Inhalation, the most common route of nanoparticle exposure, has been shown to cause adverse effects on pulmonary functions and the deposited particles in the lung can be translocated to the blood system by passing through the pulmonary protection barriers. Filtration is the simplest and most common method of aerosol control. It is widely used in mechanical ventilation and respiratory protection. However, concerns have been raised regarding the effectiveness of the filters for capturing nanoparticles. This paper reviews the literature on the filtration performance of mechanical filters and respirators against nanoparticles. It includes the discussion about filtration mechanisms, theoretical models, affecting factors of the filtration efficiency, and testing protocols for respirator and filter certification.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Performance of Mechanical Filters and Respirators for Capturing Nanoparticles ―Limitations and Future Direction","attachmentId":45581320,"attachmentType":"pdf","work_url":"https://www.academia.edu/13219318/Performance_of_Mechanical_Filters_and_Respirators_for_Capturing_Nanoparticles_Limitations_and_Future_Direction","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/13219318/Performance_of_Mechanical_Filters_and_Respirators_for_Capturing_Nanoparticles_Limitations_and_Future_Direction"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div></div></div><div class="ds-sticky-ctas--wrapper js-loswp-sticky-ctas hidden"><div class="ds-sticky-ctas--grid-container"><div class="ds-sticky-ctas--container"><button class="ds2-5-button js-swp-download-button" data-signup-modal="{"location":"continue-reading-button--sticky-ctas","attachmentId":69691090,"attachmentType":"pdf","workUrl":null}">See full PDF</button><button class="ds2-5-button ds2-5-button--secondary js-swp-download-button" data-signup-modal="{"location":"download-pdf-button--sticky-ctas","attachmentId":69691090,"attachmentType":"pdf","workUrl":null}"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span>Download PDF</button></div></div></div><div class="ds-below-fold--grid-container"><div class="ds-work--container js-loswp-embedded-document"><div class="attachment_preview" data-attachment="Attachment_69691090" style="display: none"><div class="js-scribd-document-container"><div class="scribd--document-loading js-scribd-document-loader" style="display: block;"><img alt="Loading..." src="//a.academia-assets.com/images/loaders/paper-load.gif" /><p>Loading Preview</p></div></div><div style="text-align: center;"><div class="scribd--no-preview-alert js-preview-unavailable"><p>Sorry, preview is currently unavailable. 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