The 3M 6001 Organic Vapor Cartridge is NIOSH approved for a wide variety of organic vapors. Each cartridge contains granulated charcoal that is treated to absorb organic vapors from the air passing through as you inhale. Used mainly to protect against solvents, such as those in oil based paints. Others would include paint thinner, lacquer thinner, turpentine and fuel vapors. Also absorbs bad smells. Not for use with urethane paints that contain isocyanates. Attaches to the 3M 6000 and 7500 series masks. For paint spray and pesticide applications, use with a prefilter such as the 5P71 or 5N11 and filter retainer 501.