When properly fitted, use in a variety of applications including welding, brazing, torch cutting, metal pouring, soldering, and exposure to lead, asbestos, cadmium, arsenic, and MDA for concentrations up to 10 times the Permissible Exposure Limit (PEL) with half facepieces or 50 times PEL with full facepieces. Use with 3M Respirators 5000 Series or 3M Cartridge 6000 Series with 3M Adapter 502, or 3M Half and Full Facepieces 6000, 7000 and FF-400 Series with bayonet filter holders. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.