Safety Works Multipurpose Filter Cartridge reliable protection with its multipurpose acid gas, organic vapor, and P100 cartridges combined with P95 prefilters. Designed with a low profile to enhance your field of vision, these cartridges ensure comfort and safety during use. The bayonet fittings allow for easy attachment and a consistent, secure fit on the respirator body. by NIOSH (National Institute for Occupational Safety and Health), this product s high-quality respiratory protection. Each package includes two cartridges in a convenient clamshell package, making it easy to store and use when needed. Model Number: SWX00325