Three Mestel CBRN Safety Multipurpose NATO 40mm NBC / …
Multipurpose, Military-Grade NATO 40mm NBC/CBRN Gas Mask / Respirator Filters:. Brand New Filter Sealed in Factory Packaging w/instructions; Rated for A2B2E2K2P3 / True Military-Grade Protection (Including organic gases & vapours, inorganic gases & vapours (chlorine, hydrogen sulphide, hydrogen cyanide, etc.), acid gases (sulphur dioxide, hydrogen chloride & more)