This ammonia/methylamine cartridge/P100 filter can be used for a variety of applications, including agriculture, chemical manufacturing, laboratory work, disaster recovery, and food processing. The swept-back design offers enhanced comfort and visibility. When properly fitted, this cartridge helps provide respiratory protection from ammonia and methylamine as well as non-oil and oil particulates at concentrations up to 10 times the Permissible Exposure Limit (PEL) with half facepieces or 50 times PEL with full facepieces. Full facepieces 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.