MSA P100/OV/Acid Gas Cartridge

These filters and cartridges are compatible with MSA Advantage 200 LS, 420, 1000, 3000, and 4000 reusable respirators. This cartridge is NIOSH-rated and installed in reusable half-mask or full-face respirators to filter out airborne contaminants. It is selected based on the environment and type of respiratory hazards that need to be filtered. Can be changed out when they become dirty or when the type of contaminant changes. Filters and cartridges are compatible with a specific brand and mask model. (2 cartridges per pack) Show Less