6800 Full Face Respirator Mask (1 piece). 6003 Filter Cartridges (2 pieces). 501 Filter Covers (2 pieces). 5N11 Filter Cotton Pads (2 pieces). 6003CN Filters: Specifically designed to provide protection against a range of harmful chemical substances, including organic vapors, ammonia gas, hydrogen chloride, sulfur dioxide, hydrogen sulfide, and hydrogen fluoride.