3M™ Combination Filter CF32 DT-4045E ABEK2P3 protects against gases and vapours from organic compounds with a boiling point above 65°C; inorganic gases and vapours; acid gases and vapours; ammonia and organic ammonia derivatives; solid and liquid particles, toxic and radioactive particles, micro-organisms (e.g. bacteria and viruses) and enzymes ; DIN40 mm threaded connection fits compatible respirator 3M™ Full Facepiece FF-300 Series and 3M™ Full Facepiece FF-600 Series; also compatible with certain 3M™ Powered Air Respirators