3M Full Facepiece Respirator Assembly 68P71 Medium. This assembly has replaceable cartridges and filters. It consists of 1 each 3M Full Facepiece, 2 each Organic Vapor Cartridges 6001, 4 each 3M Particulate Filter, 2 each 3M Filter Retainer. Using a full face piece helps prevent paint overspray and dusts from getting in your eyes. It also helps reduce exposure to organic vapors and mists associated with paint spray, pesticide applications, solvents and thinners.