3M Particulate Filter 5N11 NIOSH approved for environments containing certain non-oil based particles. Use with 3M™ Respirators 5000 Series or 3M™ Cartridges 6000 Series or 3M™ Filter Adapter 603, and 3M™ Filter Retainer 501. Details NIOSH approved for environments containing certain non-oil-based particles Use on top of 3M gas and vapor cartridges with 3M™ 501 Retainer when particles are also present Use on top of 3M™ 603 Filter Holder and 3M™ 501 Retainer to reduce particulate exposure Replaceable particle filter for cost savings Wide range of applications reduces inventory needs and training requirements