The 3M™ rugged comfort 6500 Series half face piece reusable respirator helps provide respiratory protection in harsh, dirty environments against airborne contaminants when used with approved 3M™ cartridges and filters. This face piece is designed to help promote comfort, durability and stability with a firm, lightly textured silicone face seal and strong body construction. When properly fitted and used with approved 3M™ cartridges and filters, this respirator helps provide respiratory protection at concentrations up to 10X the Permissible Exposure Limit (PEL). While being the lightest silicone 3M™ face piece, it is still rugged enough to withstand long hours and extreme conditions. The resilient silicone face seal offers an extended face piece life, even keeping its shape in high-heat environments. The face piece offers numerous other comfort features. Two innovative design features have been built-in a special valve cover that helps to direct exhaled breath and moisture downward and 3M™ proprietary Cool Flow™ Valve that helps to make breathing easier by reducing heat and moisture. Made to fit securely and comfortably on the head, the face piece comes with an adjustable head harness assembly featuring long-lasting polyester/spandex straps that stretch and conform to the individual who wears the respirator. This face piece is compatible with all 3M™ bayonet-style filters and cartridges, including 6000 Series cartridges and 3M™ 2000, 2200, 7000 or 5000 Series filters, to help provide respiratory protection against a variety of gases, vapors and particulate hazards according to NIOSH approvals. This filter compatibility helps to make the respirator highly versatile for many workplace environments and a variety of jobs where respiratory protection is required. A durable, long-lasting respirator, the 6500 Series face piece is rugged enough to help withstand extreme conditions and long hours, yet comfortable to wear. The sleek, low-profile design help.