Honeywell North 75SCP100L Multi gas P100 Cartridge — North Bayonet N95 The 3M 60924 Ammonia Methylamine Style:Non Vented (20950) The 3M 60924 Ammonia Methylamine Respirator Cartridge is a NIOSH approved ammonia methylamine P100 combination cartridge for 3M bayonet respirators Keep in mind Costs more than the gas only 6004 when no dust is present Gases outside its NIOSH approved list No No cartridge covers gases outside its approval — verify the gas against the NIOSH approval and use supplied air if none applies A cartridge or filter carries no assigned protection factor of its own — the APF comes from the facepiece it is fitted to: 10 for a half mask