3M Organic Vapor / Acid Gas Cartridge 3M6003 is NIOSH approved against certain organic vapors and gases. It can be used in a variety of applications including petrochemical, laboratories, pharmaceutical and chemical manufacturing. When properly fitted, the cartridge helps provide respiratory protection from certain organic vapors at concentrations up to 10 times the Permissible Exposure Limit (PEL) with half face pieces or 50 times PEL with full face pieces. Full face pieces must be quantitatively fit tested to claim assigned protection factor above 10 in negative pressure mode. Do not use in environments that are immediately dangerous to life or health (IDLH). 2 per bag.