The civilian version of the military combined filter that meets the strictest criteria for protection against chemical warfare agents. Medium degree of protection against industrial gases. A light filter, suitable for combination with a mask or half mask. Combined protective filter A2B1E1P3 DR Body material Noryl Diameter and height 110 x 73 mm Mass 287 g Respiratory resistance max. 150 Pa – 30 l/min max. 490 Pa – 95 l/min Filtration efficiency 99.992% Threaded connection RD 40×1/7″ Scope of protection Organic, inorganic, acid gases and vapors, chlorine, cyclohexane, toluene, alcohol, halogens, phosgene, hydrogen cyanide, cyanogen chloride, chloropicrin, sarin, mustard gas, hydrogen sulfide, sulfur dioxide, formaldehyde, bromine, hydrogen chloride and hydrogen fluoride, dust and liquid particles, aerosols , toxic fumes, biological solids, liquid aerosols, radioactive aerosols, bacteria, viruses. Areas of use Protective filter for army units, police, special rescue units, fire rescue units. Chemical, food, pharmaceutical plants, production of electronics and packaging materials, foundries, paint shops, laboratories, hospitals and vulnerable populations.