Half Facepiece Respirator 6000 Series is reusable. Just replace cartridges/filters when used to capacity. Facepiece is made from soft, lightweight thermoplastic elastomer and head harness assembly and spare parts available. Use with 3M Filters 2000 Series, 3M Filter 7093, P100, 3M Cartridges 6000 Series or 3M Dual Airline Systems against a variety of gases, vapors, and particulate hazards according to NIOSH approvals.