MOLDEX RESPIRATOR WITH SMART CARTRIDGE - NIOSH approved for organic vapors, ammonia, methylamine, chlorine, hydrogen chloride, sulfur, dioxide, or chlorine dioxide, or hydrogen fluoride, or formaldehyde and hydrogen sulfide escape only. Multi gas/vapor cartridge simplifies inventory--- replaces up to five gas/vapor cartridges. Cartridge selection made simpler and misuse reduced. Use with #8910 N95 or #8940 P100 filters against particulates. Approval #TC-21C-1225.