The 3M™ Performance Replacement Kit has everything you need to replace your cartridges and filters on your 3M™ 6000 Series Performance Reusable Paint Project Respirator. This kit includes one pair of replaceable 3M™ Cartridges 6001, one pair of reusable 3M™ Retainers 501, and two pairs of 3M™ Replacement Particulate Filters.For professional use only, the 3M™ Replacement Particulate Filters in this kit are an excellent choice for workplace and occupational applications. Each filter has a NIOSH-approved P95 rating, filtering at least 95% of solids and liquid aerosols, as well as organic vapour.