3M 5N11/5925 Particulate Prefilter PairThese particulate filters are designed to be easily replaced for a cost effective solution. Use 3M Particulate Filters 5000 Series with 3M Gas Vapor Cartridges and the 3M Filter Retainer 501 to help filter certain particulates including dusts, mists, fibers, and metal fumes in addition to a broad range of gases and vapors. Or, use these filters with 3M Filter Adapter 603 and the 3M Filter Retainer 501 to help reduce particulate exposures only. These