Masker dalam pandemi COVID-19: Perbedaan antara revisi

[[Berkas:3M_N95_Particulate_RespiratorCounterfeit 3M N95 Particulate Respirator.JPGjpg|ka|jmpl|Sebuah [[masker N95]]]]

[[Masker N95]] AS, [[Masker KN95]] dari Tiongkok, dan [[masker FFP2]] dari Uni Eropa,<ref>{{Cite web|url=https://multimedia.3m.com/mws/media/1791500O/comparison-ffp2-kn95-n95-filtering-facepiece-respirator-classes-tb.pdf|title=Comparison of FFP2, KN95, and N95 and Other Filtering Facepiece Respirator Classes|last=|first=|date=2020-01-01|website=3M Technical Data Bulletin|url-status=live|archive-url=|archive-date=|access-date=2020-03-28}}</ref><ref name=":12">{{Cite web|url=https://www.cdc.gov/coronavirus/2019-ncov/hcp/respirators-strategy/crisis-alternate-strategies.html|title=Strategies for Optimizing the Supply of N95 Respirators: Crisis/Alternate Strategies|last=|first=|date=2020-03-17|website=U.S. Centers for Disease Control and Prevention|language=en-us|url-status=live|archive-url=|archive-date=|access-date=2020-03-28}}</ref> mampu menyaring hingga 95% partikel di udara, termasuk virus.<ref>{{Cite web|url=https://www.cdc.gov/niosh/npptl/topics/respirators/disp_part/n95list1-a.html|title=NIOSH-Approved N95 Particulate Filtering Facepiece Respirators - A Suppliers List|last=|first=|date=2020-03-19|website=U.S. National Institute for Occupational Safety and Health|language=en-us|url-status=live|archive-url=|archive-date=|access-date=2020-03-27}}</ref><ref>{{Cite web|url=https://www.cdc.gov/niosh/npptl/topics/respirators/disp_part/respsource3selection.html|title=Respirator Trusted-Source: Selection FAQs|last=|first=|date=2020-03-12|website=U.S. National Institute for Occupational Safety and Health|language=en-us|url-status=live|archive-url=|archive-date=|access-date=2020-03-28}}</ref> Dibuat dari bahan yang sama dengan masker medis, masker jenis ini didesain supaya dapat menutupi hidung dan mulut dengan lebih sempurna (tidak longgar seperti masker medis), namun penggunaan dalam jangka waktu yang lama tanpa melepasnya dapat menyebabkan penggunanya kekurangan oksigen.<ref name="VOADeliver">{{Cite news|last=Zie|first=John |url=https://www.voanews.com/science-health/coronavirus-outbreak/world-depends-china-face-masks-can-country-deliver|title=World Depends on China for Face Masks But Can Country Deliver? |date=March 19, 2020|newspaper=[[Voice of America]]|accessdate=|authorlink=}}</ref><ref>{{Cite news|last=Feng|first=Emily|url=https://www.npr.org/sections/goatsandsoda/2020/03/16/814929294/covid-19-has-caused-a-shortage-of-face-masks-but-theyre-surprisingly-hard-to-mak|title=COVID-19 Has Caused A Shortage Of Face Masks. But They're Surprisingly Hard To Make|date=March 16, 2020|newspaper=[[NPR]]|accessdate=|authorlink=}}</ref> Efikasi untuk masker medis N95 mencapai 99%, masker bedah mencapai 98%, dan masker buatan sendiri atau kain dengan 5 lapisan hanya 95,15% dalam memblokir virus [[Flu burung|flu]] burung yang sebanding dengan ukuran partikel virus Covid-19. Penting diketahui bahwa masker buatan sendiri atau masker kain dibuat menggunakan hanya 1 lapisan dari bahan kain [[poliester]] dan filter 4 lapis seperti kertas. Masker N95 mirip dengan masker penangkal virus di negara-negara [[Eropa]] dan dibuat secara [[Elektrostatika|elektrostatis]] mikrofiber [[polipropilen]] yang dirancang untuk partikel filter berukuran diameter 100-300nm300&nbsp;nm dengan efikasi 95%.{{Sfn|Feng et al|2020|p=434-435}}

<ref name="sci_masks">{{cite web |url=http://www.nhc.gov.cn/jkj/s3577/202003/0a472cc09e744144883db6a74fe6e760.shtml |title=关于印发公众科学戴口罩指引的通知引 |language=zh |date=18 March 2020 |work=NHC.gov.cn |publisher=[[Chinese Center for Disease Control and Prevention]] |archiveurl=httphttps://archive.istoday/mRT0n20200320170545/http://www.nhc.gov.cn/jkj/s3577/202003/0a472cc09e744144883db6a74fe6e760.shtml |archivedate=20 March 2020 }}</ref>