"3M SAFETY" CARTRIDGES FOR PRO MULTI-PURPOSE RESPIRATOR *1 kit - 1 pair of cartridges *NIOSH approved for use against certain organic vapors chlorine, hydrogen chloride, sulfur dioxide, hydrogen flouride, hydrogen sulfide and particulates *NIOSH OV/AG/P100 *Use for mold, lead and sprays from coatings and sealants *Fits 3M 6000 and 7500 series half facepiecerespirators *Cartridges fit both professional (Ace no. 2221885) and household  (Ace no. 2221907) multi-purpose respirators *Designed and constructed for exceptional performance and comfort that lasts *Boxed *Discovery CON, NBR, SUP, EXP