The 3M™ Supply Kit OV/P95 contains replacement cartridges and filters for your 3M™ Paint Project Respirator – 6000 series. For professional use only, this kit helps provide protection against particles and organic vapors when attached to a 3M™ Reusable Respirator. Filters require reusable 501 retainers, which are sold with the 3M™ Paint Project Respirator or in the 3M™ Replacement Kit #6023. When it’s time to replace your cartridges or filters, rely on the 3M™ Supply Kit OV/P95. NIOSH approved: OV/P95. Contains 1 pair cartridges and 2 pair filters.