Combi filter SR 299 ABEK1 HG P3R that protects against organic compounds with a boiling point above 65°C, inorganic and acid gases/vapours, ammonia, mercury vapour and all types of particles. Warning! Maximum use time 50 hours (mercury vapour) . Fits on all Sundström half- and full masks. Carton: 10 boxes of 3 pcs.