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In general, N95/KN95 refers to masks (respirators) with filtration efficiency of non-oily particles &ge 95. MedicalSupport CODrespirator/medical N95 takes into account the special requirements of the medical environment, adding liquid barrier requirements on the basis of filtration efficiency of non-oily particles &ge 95.● N95: compliance with 42CFR Part 84 Respiratory Protective Devices, NIOSH (national institute of occupational safety and health) Filtration efficiency of non-oil particles &ge 95.KN95: in line with China' s standard gb2626-2006 respiratory protective equipment -- self-imbibition filter anti-particulate respirator Filtration efficiency of non-oil particles &ge 95.The specific technical requirements and test methods of the filtration efficiency of non-oily particles in N95 and KN95 standards are basically the same, and the protection effect is basically the same, but it belongs to the standards of different countries. The N95 material KN95.● medical respirator: in line with China' s standard gb19083-2010 medical respirator According to the filtration efficiency of non-oily particles &ge