3M Bayonet Gas & Vapor Cartridges with Particulate Filters are NIOSH approved and conveniently provide protection against a wide range of gases, vapors and particulates depending on the model selected. They have a bayonet-style connection that fits any 3M Bayonet Reusable Respirator and theyre designed to optimize your field of vision. These cartridges offer lightweight breathing protection for a wide range of hazardous environments.