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If it is a hospital specific N95 mask, it is the aforementioned medical protective mask, that is, the material of the outer surface of the mask has the ability to block pressure body fluid from splashing and penetrating. While meeting the NIOSH requirements, it must

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Respiratory Protection for Airborne Exposures to

to the face, and research has shown that they do not achieve the level of contaminant reduction provided by a certified anthrax spore, or as the agent riding on some other material that becomes airborne, such as dusts, mists or droplet nuclei. A surgical mask is an infection control device designed to help prevent the spread of

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Analysis of face mask testing standards and certification

1. China's requirements for face mask Civil face mask standard GBT 32610 2016 and labor protection face mask standard gb2626 2006. a. GBT 32610 2016 divides face mask into four levels According to the standard, the level of mask protection is divided into four grades from low to highD, C, B, A, corresponding to different air quality conditions.

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