Multi Gas/Vapor Cartridge/Filter, P100 Respiratory Protection may be used for respiratory protection from certain organic vapours, chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, hydrogen sulfide, ammonia, methylamine, formaldehyde or hydrogen fluoride, and non-oil and oil particulate concentrations up to 10 times the permissible exposure limit with half facepieces or 50 times with quantitatively fit tested full facepiece masks. This cartridge/filter is not for use in environments that are immediately dangerous to life or health. Recommended applications for the cartridge/filter include petrochemical and chemical processing. Swept-back design allows an enhanced field of view and comfort. Bayonet compatibility allows use with many 3M half and full facepiece designs. Wide range of applications reduces inventory needs. Simple installation and usage. Sold per pair.