Pack of 6 pairs of special filters for a continued operational readiness of the breathing mask. Bayonet fixing for a quixck and easy exchange. Protection level A2:P3 D for solvent vapours, isocynates and paint particles. Little inhaltion resistance (approved by the dolomite dust test "D" of the Governmental Safety Organisation). Vacuum-packed supply for a long lifetime and top safety. Suitable for SATA Air Star F.