3M™ 5N11 N95 Particulate Filter, Box of 103M 5N11 N95 Particulate Filter These 3M 5N11 Particulate Filters are designed to work seamlessly with 3M reusable respirators such as the 6000, 6500, 7500 series, or FF 400. NIOSH rated particulate filters and vapor cartridges are installed in reusable half face mask or full face respirators to effectively filter airborne contaminants. The selection of these filters and cartridges is determined by the specific environment and the type of respiratory