22 Oct 2018 . Behbahan 63616-1111, Iran; mo.haghighat1988 gmail.com . They showed that except for the active carbon mask, all other respirators . filtering facepiece particulate respirator and a surgical mask during human breathing: .
1 Apr 2020 . While they do cover your mouth, surgical masks can't really protect you . As the name suggests, these masks contain an activated carbon filter, .
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19 Mar 2020 . FILE - Masks are seen on a production line manufacturing masks at a . masks known as N95 respirators, which filter out about 95 percent of . the Chinese government has begun some shipments to Iran, South Korea, Japan and Italy. . FILE - An Indian laborer works at a surgical mask production unit in .
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activated carbon, and sponges, have certain protective effects, and can also reduce the spread . learning and activities. Medical surgical mask. Recommended for people with a medium risk of exposure: ○ General . with P100 filter cotton .
2 Jun 2019 . The results show that combining activated carbon, spunbond, and . surgical masks and N95 masks are designed to filter viruses and bacteria .
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