May be used for respiratory protection from certain organic vapors, chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, hydrogen sulfide, ammonia, methylamine, formaldehyde, or hydrogen fluoride, and non-oil and oilparticulate concentrations up to 10 times the Permissible Exposure Limit (PEL) with half facepieces or 50 times PEL with quantitatively fit tested full facepiece masks. This cartridge/filter is not for use in environments that are immediately dangerous to life or health (IDLH). This multi gas/vapor cartridge/filter combination works with 3M™ Half and Full Facepieces 6000, 7000 and FF-400 Series with bayonet attachment holders. Swept-back design allows an enhanced field of view and comfort. NIOSH approved against certain organic vapors, acid gases and particulates.