Gb 19083-20 10 Medical Protective Masks According to the standard technical requirements, in addition to filtration efficiency, GB 19083-20 10 Technical Requirements for Medical Protective Masks also has some restrictions on masks, nose clips, mask straps, airflow resistance and synthetic blood permeability. Compared with GB 2626-2006 "Self-priming Respiratory Protective Articles"
N95 mask is one of nine kinds of particulate matter protective masks certified by NIOSH (National Institute of Occupational Safety and Health).
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Protective effects of different masks:
According to the "Guidelines for the Protection of People with Different Infection Risks in novel coronavirus" issued by the CDC in official website, the four kinds of masks commonly used in the market at present can be divided into: disposable medical masks (YY/T 0969-20 13) according to their protective effects.