{"id":28306,"date":"2022-02-09T16:39:50","date_gmt":"2022-02-09T21:39:50","guid":{"rendered":"https:\/\/textiles.ncsu.edu\/news\/?p=18573"},"modified":"2022-02-09T16:39:50","modified_gmt":"2022-02-09T21:39:50","slug":"wilson-college-expert-explains-evolving-face-covering-guidance","status":"publish","type":"post","link":"https:\/\/textiles.ncsu.edu\/news\/2022\/02\/wilson-college-expert-explains-evolving-face-covering-guidance\/","title":{"rendered":"Wilson College Expert Explains Evolving Face Covering Guidance"},"content":{"rendered":"\n<p>By Sarah Stone <\/p>\n\n\n\n<p>As the Coronavirus pandemic changes, so does scientists\u2019 understanding of how to best use face coverings to protect ourselves from the disease. That was one of the key messages <a href=\"https:\/\/textiles.ncsu.edu\/directory\/people\/rbormond\">Wilson College of Textiles Assistant Professor Bryan Ormond<\/a> wanted his audience to take away from a presentation to the university about face coverings.&nbsp;<\/p>\n\n\n\n<p>\u201cIt&#8217;s not necessarily [that the guidance on face coverings is] flip-flopping back and forth, it&#8217;s just responding to what&#8217;s actually happening in the world and specifically with the virus,\u201d Ormond said.<\/p>\n\n\n\n<p>Ormond, who has over a decade of research experience specializing in personal protective equipment (PPE), provided a thorough explanation of the science behind face coverings to NC&#160;State staff, faculty and students on February 2. He delved into how filtration works at the molecular level, the different factors of face covering efficacy, how different types of face coverings are tested and regulated, and how to spot counterfeit products.&nbsp;Additionally, Ormond shared his research group\u2019s progress in <a href=\"https:\/\/textiles.ncsu.edu\/news\/2021\/09\/researchers-are-developing-better-tests-for-face-coverings-with-new-tech\/\" target=\"_blank\" rel=\"noreferrer noopener\">testing face covering efficacy<\/a> that takes movement of the head into account. <\/p>\n\n\n\n<p>Below, read some of the principle takeaways from Ormond\u2019s seminar. You can also watch it in fulI by clicking <a href=\"https:\/\/ncsu.hosted.panopto.com\/Panopto\/Pages\/Viewer.aspx?id=bd770e2b-1892-46f2-abfb-ae3100f91685\" target=\"_blank\" rel=\"noreferrer noopener\">here<\/a> or scrolling to the bottom of the page.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"masks-don-t-just-protect-others\">Masks don\u2019t \u201cjust\u201d protect others<\/h3>\n\n\n\n<p>Many types of face coverings can provide some level of both respiratory protection and source capture. Respiratory protection means that the air you breathe in is filtered, reducing your risk of exposure to the coronavirus. Source capture means that the air you breathe out is filtered, reducing the risk of exposure to the coronavirus for the people around you.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Filtering facepiece respirators, or FFRs (N95, KN95, KF94 and FFP2), provide both respiratory protection and source capture.&nbsp;<\/li><li>Barrier face coverings (knit or woven face coverings made out of a variety of materials) as well as surgical and procedural masks (think of the blue, non-woven masks many people wear) for the most part provide only source capture. However, even these masks still provide varying degrees of respiratory protection!<\/li><\/ul>\n\n\n\n<blockquote class=\"wp-block-ncst-pullquote has-red-400-text-color\"><div class=\"pullquote-container\"><p class=\"pullquote-content\">We don\u2019t \u2018prevent\u2019 anything. It\u2019s all about minimizing the exposure, reducing the possibility that you could be exposed to something.\u201d <br>&#8211; Assistant Professor Bryan Ormond<\/p><\/div><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"face-coverings-are-your-last-line-of-defense-not-your-only-form-of-defense\">Face coverings are your last line of defense, not your only form of defense<\/h3>\n\n\n\n<p>Masks were never intended to work alone as a 100% preventative measure against contracting or spreading airborne infectious diseases like the Coronavirus. Instead, this measure is supposed to be layered on top of other proven preventative measures, such as social distancing and vaccination, to minimize the likelihood of contracting the virus.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"all-face-coverings-work\">All face coverings \u201cwork\u201d&nbsp;<\/h3>\n\n\n\n<p>That means if you wore a face covering but you still contracted the virus, it doesn\u2019t mean that the mask didn\u2019t \u201cwork.\u201d&nbsp;<\/p>\n\n\n\n<p>\u201cHow do you define \u2018work\u2019? That&#8217;s incredibly important, because you have to understand \u2013 what are you asking these products to do? With all PPE, you have to understand what you&#8217;re asking that product to do. And it&#8217;s really important to understand,\u201d Ormond explained. \u201cAnd in this case, if you are asking a mask to serve as stopping and preventing any possible transmission of COVID to you whatsoever, then I hate to tell you \u2013 no mask is going to do that. We don&#8217;t \u2018prevent\u2019 anything. It&#8217;s all about minimizing the exposure, reducing the possibility that you could be exposed to something.\u201d<\/p>\n\n\n\n<p>Your definition of a face covering \u201cworking\u201d will probably include unique combinations and prioritizations of factors such as:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Fit.<\/li><li>Breathability.&nbsp;<\/li><li>Level of respiratory protection.<\/li><li>Level of source capture.&nbsp;<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"fit-is-crucial\">Fit is crucial&nbsp;<\/h3>\n\n\n\n<p>Even if you are wearing a mask made of material that has been tested and proven to be highly effective at filtering the particles you\u2019re breathing in and those you\u2019re breathing out, that mask will be highly ineffective with a poor fit. That\u2019s because unfiltered air can easily leak in or out through any gaps in the fit of your mask.&nbsp;<\/p>\n\n\n\n<p>It\u2019s better to wear a mask with somewhat poorer filtration quality but proper fit than to wear one with top notch filtration but a poor fit. The good news? Brackets, fitters and varying mask designs exist to help you achieve the best overlap of fit and filtration.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"different-types-of-testing-regulation-exist-for-different-types-of-face-coverings-in-the-u-s\">Different types of testing, regulation exist for different types of face coverings in the U.S.<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>N95s are regulated by the <a href=\"https:\/\/www.cdc.gov\/niosh\/index.htm\">National Institute for Occupational Safety and Health<\/a> (NIOSH). As the name suggests, this testing comes from an occupational perspective, such as construction or toxic waste management.&nbsp;<\/li><li>Surgical or procedural masks are regulated by the Food and Drug Administration (FDA) within the context of employees working in the health care industry.&nbsp;<\/li><li>The standards for barrier face coverings are set by the Centers for Disease Control and Prevention (CDC) based on the standards developed during the pandemic by ASTM. Ormond was a member of the subcommittee that developed those standards.&nbsp;<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"some-basic-differences-exist-between-n95-kn95-kf94-and-ffp2-masks\">Some basic differences exist between N95, KN95, KF94 and FFP2 masks<\/h3>\n\n\n\n<p>All of these masks fall within the category of filtering facepiece respirators(FFRs). Each type is regulated differently and by a different country.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>N95s are regulated in the U.S. by NIOSH.&nbsp;<\/li><li>KN95s\u2019 standards are set by a Chinese government agency. However, KN95 manufacturers are not regulated to the same degree as with N95s or KF94s. They may&nbsp; not have their masks tested and approved by that agency before they begin production.<\/li><li>KF94s are regulated by South Korea\u2019s Ministry of Food and Drug Safety. Ormond says these masks are highly regulated and considers them to be high quality products.&nbsp;<\/li><li>FFP2s are regulated by European government agencies.&nbsp;<\/li><\/ul>\n\n\n\n<p>The minimum filter performance that these types of masks must meet ranges from 94% to 95%. Filter performance is a measure of what percent of particles penetrate the mask. For example, for a mask with 95% filter performance, 5% of particles managed to penetrate the mask in testing.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rewatch-the-full-seminar-below\">Rewatch the full seminar below<\/h3>\n\n\n\n<p><\/p>\n","protected":false,"raw":"<!-- wp:ncst\/dynamic-header -->\n<!-- wp:ncst\/default-post-header \/-->\n<!-- \/wp:ncst\/dynamic-header -->\n\n<!-- wp:paragraph -->\n<p>By Sarah Stone <\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>As the Coronavirus pandemic changes, so does scientists\u2019 understanding of how to best use face coverings to protect ourselves from the disease. That was one of the key messages <a href=\"https:\/\/textiles.ncsu.edu\/directory\/people\/rbormond\">Wilson College of Textiles Assistant Professor Bryan Ormond<\/a> wanted his audience to take away from a presentation to the university about face coverings.&nbsp;<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>\u201cIt's not necessarily [that the guidance on face coverings is] flip-flopping back and forth, it's just responding to what's actually happening in the world and specifically with the virus,\u201d Ormond said.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Ormond, who has over a decade of research experience specializing in personal protective equipment (PPE), provided a thorough explanation of the science behind face coverings to NC State staff, faculty and students on February 2. He delved into how filtration works at the molecular level, the different factors of face covering efficacy, how different types of face coverings are tested and regulated, and how to spot counterfeit products.&nbsp;Additionally, Ormond shared his research group\u2019s progress in <a href=\"https:\/\/textiles.ncsu.edu\/news\/2021\/09\/researchers-are-developing-better-tests-for-face-coverings-with-new-tech\/\" target=\"_blank\" rel=\"noreferrer noopener\">testing face covering efficacy<\/a> that takes movement of the head into account. <\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Below, read some of the principle takeaways from Ormond\u2019s seminar. You can also watch it in fulI by clicking <a href=\"https:\/\/ncsu.hosted.panopto.com\/Panopto\/Pages\/Viewer.aspx?id=bd770e2b-1892-46f2-abfb-ae3100f91685\" target=\"_blank\" rel=\"noreferrer noopener\">here<\/a> or scrolling to the bottom of the page.&nbsp;<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 id=\"masks-don-t-just-protect-others\">Masks don\u2019t \u201cjust\u201d protect others<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>Many types of face coverings can provide some level of both respiratory protection and source capture. Respiratory protection means that the air you breathe in is filtered, reducing your risk of exposure to the coronavirus. Source capture means that the air you breathe out is filtered, reducing the risk of exposure to the coronavirus for the people around you.&nbsp;<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><li>Filtering facepiece respirators, or FFRs (N95, KN95, KF94 and FFP2), provide both respiratory protection and source capture.&nbsp;<\/li><li>Barrier face coverings (knit or woven face coverings made out of a variety of materials) as well as surgical and procedural masks (think of the blue, non-woven masks many people wear) for the most part provide only source capture. However, even these masks still provide varying degrees of respiratory protection!<\/li><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:ncst\/pullquote {\"value\":\"\u201cWe don\u2019t \u2018prevent\u2019 anything. It\u2019s all about minimizing the exposure, reducing the possibility that you could be exposed to something.\u201d \\u003cbr\\u003e- Assistant Professor Bryan Ormond\"} -->\n<blockquote class=\"wp-block-ncst-pullquote has-red-400-text-color\"><div class=\"pullquote-container\"><p class=\"pullquote-content\">We don\u2019t \u2018prevent\u2019 anything. It\u2019s all about minimizing the exposure, reducing the possibility that you could be exposed to something.\u201d <br>- Assistant Professor Bryan Ormond<\/p><\/div><\/blockquote>\n<!-- \/wp:ncst\/pullquote -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 id=\"face-coverings-are-your-last-line-of-defense-not-your-only-form-of-defense\">Face coverings are your last line of defense, not your only form of defense<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>Masks were never intended to work alone as a 100% preventative measure against contracting or spreading airborne infectious diseases like the Coronavirus. Instead, this measure is supposed to be layered on top of other proven preventative measures, such as social distancing and vaccination, to minimize the likelihood of contracting the virus.&nbsp;<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 id=\"all-face-coverings-work\">All face coverings \u201cwork\u201d&nbsp;<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>That means if you wore a face covering but you still contracted the virus, it doesn\u2019t mean that the mask didn\u2019t \u201cwork.\u201d&nbsp;<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>\u201cHow do you define \u2018work\u2019? That's incredibly important, because you have to understand \u2013 what are you asking these products to do? With all PPE, you have to understand what you're asking that product to do. And it's really important to understand,\u201d Ormond explained. \u201cAnd in this case, if you are asking a mask to serve as stopping and preventing any possible transmission of COVID to you whatsoever, then I hate to tell you \u2013 no mask is going to do that. We don't \u2018prevent\u2019 anything. It's all about minimizing the exposure, reducing the possibility that you could be exposed to something.\u201d<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Your definition of a face covering \u201cworking\u201d will probably include unique combinations and prioritizations of factors such as:&nbsp;<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><li>Fit.<\/li><li>Breathability.&nbsp;<\/li><li>Level of respiratory protection.<\/li><li>Level of source capture.&nbsp;<\/li><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 id=\"fit-is-crucial\">Fit is crucial&nbsp;<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>Even if you are wearing a mask made of material that has been tested and proven to be highly effective at filtering the particles you\u2019re breathing in and those you\u2019re breathing out, that mask will be highly ineffective with a poor fit. That\u2019s because unfiltered air can easily leak in or out through any gaps in the fit of your mask.&nbsp;<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>It\u2019s better to wear a mask with somewhat poorer filtration quality but proper fit than to wear one with top notch filtration but a poor fit. The good news? Brackets, fitters and varying mask designs exist to help you achieve the best overlap of fit and filtration.&nbsp;<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 id=\"different-types-of-testing-regulation-exist-for-different-types-of-face-coverings-in-the-u-s\">Different types of testing, regulation exist for different types of face coverings in the U.S.<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><li>N95s are regulated by the <a href=\"https:\/\/www.cdc.gov\/niosh\/index.htm\">National Institute for Occupational Safety and Health<\/a> (NIOSH). As the name suggests, this testing comes from an occupational perspective, such as construction or toxic waste management.&nbsp;<\/li><li>Surgical or procedural masks are regulated by the Food and Drug Administration (FDA) within the context of employees working in the health care industry.&nbsp;<\/li><li>The standards for barrier face coverings are set by the Centers for Disease Control and Prevention (CDC) based on the standards developed during the pandemic by ASTM. Ormond was a member of the subcommittee that developed those standards.&nbsp;<\/li><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 id=\"some-basic-differences-exist-between-n95-kn95-kf94-and-ffp2-masks\">Some basic differences exist between N95, KN95, KF94 and FFP2 masks<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>All of these masks fall within the category of filtering facepiece respirators(FFRs). Each type is regulated differently and by a different country.&nbsp;<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><li>N95s are regulated in the U.S. by NIOSH.&nbsp;<\/li><li>KN95s\u2019 standards are set by a Chinese government agency. However, KN95 manufacturers are not regulated to the same degree as with N95s or KF94s. They may&nbsp; not have their masks tested and approved by that agency before they begin production.<\/li><li>KF94s are regulated by South Korea\u2019s Ministry of Food and Drug Safety. Ormond says these masks are highly regulated and considers them to be high quality products.&nbsp;<\/li><li>FFP2s are regulated by European government agencies.&nbsp;<\/li><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:paragraph -->\n<p>The minimum filter performance that these types of masks must meet ranges from 94% to 95%. Filter performance is a measure of what percent of particles penetrate the mask. For example, for a mask with 95% filter performance, 5% of particles managed to penetrate the mask in testing.&nbsp;<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading {\"level\":3} -->\n<h3 id=\"rewatch-the-full-seminar-below\">Rewatch the full seminar below<\/h3>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p><\/p>\n<!-- \/wp:paragraph -->"},"excerpt":{"rendered":"<p>In a new seminar, Assistant Professor Bryan Ormond addresses pervasive face covering misconceptions and explains the difference in regulation, testing ,and efficacy of different types of face coverings.<\/p>\n","protected":false},"author":12,"featured_media":24334,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"source":"","ncst_custom_author":"","ncst_show_custom_author":false,"ncst_dynamicHeaderBlockName":"ncst\/default-post-header","ncst_dynamicHeaderData":"{\"showAuthor\":true,\"showDate\":true,\"showFeaturedVideo\":false,\"displayCategoryID\":2135,\"caption\":\"\"}","ncst_content_audit_freq":"","ncst_content_audit_date":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[742,512,479],"tags":[1143,1105,2535,2536,2327,2537,2538,727,1382],"displayCategory":null,"acf":[],"yoast_head":"<title>Wilson College Expert Explains Evolving Face Covering Guidance - Wilson College of Textiles<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/textiles.ncsu.edu\/news\/2022\/02\/wilson-college-expert-explains-evolving-face-covering-guidance\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wilson College Expert Explains Evolving Face Covering Guidance - Wilson College of Textiles\" \/>\n<meta property=\"og:description\" content=\"In a new seminar, Assistant Professor Bryan Ormond addresses pervasive face covering misconceptions and explains the difference in regulation, testing ,and efficacy of different types of face coverings.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/textiles.ncsu.edu\/news\/2022\/02\/wilson-college-expert-explains-evolving-face-covering-guidance\/\" \/>\n<meta property=\"og:site_name\" content=\"Wilson College of Textiles\" \/>\n<meta property=\"article:published_time\" content=\"2022-02-09T21:39:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/tex-cloud-cdn.nyc3.digitaloceanspaces.com\/textiles-ncsu\/20231108101216\/wolf-statue-mask.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"844\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Wilson College Communications\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Wilson College Communications\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/textiles.ncsu.edu\/news\/2022\/02\/wilson-college-expert-explains-evolving-face-covering-guidance\/\",\"url\":\"https:\/\/textiles.ncsu.edu\/news\/2022\/02\/wilson-college-expert-explains-evolving-face-covering-guidance\/\",\"name\":\"Wilson College Expert Explains Evolving Face Covering Guidance - 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