Guides

Acid gases — chlorine, hydrogen chloride, sulfur dioxide and chlorine dioxide — come from water treatment, chemical processing, battery rooms and acid-catalyzed coatings. This guide ranks the best 3M acid-gas cartridges, led by the 60923 OV/acid-gas/P100, with the gas-only 6003 and pure-acid 6002 as alternatives.

3M 6002 vs 60922 compared: both are NIOSH acid gas cartridges for chlorine, hydrogen chloride and sulfur dioxide, but only the 60922 adds a P100 filter for acid mist, dust and fume from plating, pickling, acid-flux soldering and pool chemicals. Hazard-by-hazard matrix, buyer-by-buyer picks, compatibility, service life and a 16-question FAQ.