3M Ammonia, Methylamine Respirator Cartridge is used with 3M Half and Full Gas Masks 6000 Series and 3M Half and Full Gas Masks 7000 Series with bayonet style cartridge holders. 3M Ammonia, Methylamine Respirator Cartridge is used in a variety of applications including agriculture, chemical manufacturing, laboratories and the food industry. When properly fitted, helps provide respiratory protection from ammonia and methylamine at concentrations up to 10 times the Permissible Exposure Limit (PEL) with half facepieces or 50 times PEL with full facepieces. Full Gas Masks must be quantitatively fit tested to claim assigned protection factor above 10 in negative pressure mode. Not for use in environments that are immediately dangerous to life or health (IDLH).