The 3M 5911P02 Particulate Filter provides P1R level protection against a wide range of solid and liquid particulates, including dusts, mists, and other particles. Featuring the 3M Bayonet style connection, these filters are lightweight with low breathing resistance and a low-profile design to optimize the field of vision. They are compatible with 3M Reusable Half Masks (6000 Series, 6500QL Series, 7500 Series) and Full Face Masks (6000 Series). The 5911 filters can be used with a 3M 501 filter retainer and 3M 6000 Series Gas & Vapour Filters for combined gas, vapour, and particulate protection, or with a 3M Filter Adapter 603 for particulate protection only. Each pack contains two filters.