protective face mask 1)with CE certificate 2)filtration efficieny > 94% 3)good quality. protective face maskMaterial: nonwoven fabric Nontoxic, odorless, sensitivity ... advantage as following:**Various mask can be supply,including face mask,Anti-Flu mask,disposable mask,non-woven face mask,particulate resirator.**Quality control ... countries,such as America,Europe,Japan and so on. protective face mask