The 3M™ 4255+ reusable half mask features integrated A2P3 filters to help protect against certain organic gases and vapours, as well as particulates, fine dust and mists. Its lightweight, well-balanced design, soft face seal and exhalation valve help provide greater breathing comfort. Supplied ready to use, it can be reused until the gas filters become saturated, the particulate filters become clogged or the product is damaged.