Multi-Purpose Cartridge

Safety Works Filter Replacement 2-Pack #SWX00325 - Long-life cartridges are approved to the NIOSH P100 Class, so they are at least 99.97% efficient against oil- and non-oil-based contaminants, and are oil-proof, so they have no time use limitation; The cartridges are also NIOSH Approved against Chlorine, Hydrogen Chloride, Hydrogen Sulfide, and Organic Vapors; The cartridges include integral high efficiency (99.97% against 0.3 micron particles) filters and an impregnated bed of special activated carbon; The cartridges are certified by NIOSH with P100/OV/CL/SD/HC approvals.