Respiratory Protection

North offers a wide array of cartridges and filters to provide respiratory protection against more industrial air contaminants. The outer casings are made from a durable, lightweight material, and color coded for quick and easy identification. Because all North cartridges and filters are approved for use with either the 7700 or 5500 half masks, and the 5400 and 7600-8A full facepiece, you only need one inventory of cartridges and filters. For a complete listing of North cartridges, filters and prefilters, refer to the Air-Purifying Respirators cartridge chart. This handy reference guide features a full color depiction of each cartridge and filter available, a listing of the contaminants they protect against, and the NIOSH approval numbers for each respective respirator.