We have N95 , 3FLY and PFF2 surgical masks,N95 8210V Pollution Anti Fog Face Air Valve 3m Maker Smart Dust Mask RespiratoryCertification: LA, GB2626-2006KN95, NIOSH N95Packing: 10 / boxShelf life: 5 yearsApplication object: It can be used to protect certain non-oilyparticles, please refer to the applicable section of the productmanual.Examples of non-oily particulates: dust, solid smoke, and some fog.Can not be protected: all kinds of gases and vapors, oily particulatematter (such as oil smoke, oil mist, aslt smoke, etc.). Thisprotective mask does not produce oxygen and should not be used in anoxygen deficient environment.Colors available: white, blueBacteria filtration: 99+%Particle filtration: 99+%Viral filtration: 99+%1.000,000 pieces in one 40fit container 1 box contains 50 pieces,