DEXTER CARTRIDGE SEMIMASK WITH 2 ABEK1P3 R ABS AND ACTIVE CARBON FILTERSIdeal for protection from organic, inorganic, acid and ammonia gases and vapors and derivatives, class 1 (ABEK1) and dust (P3). This mask provides the greatest and most comprehensive protection against all possible hazards; odors, dusts, various particles, vapors, gases, etc.-