gas mask
A gas mask is a device worn over the mouth and nose (or muzzle, depending on the character) that consists of one or more cylindrical filters and a one-way valve, designed to protect against toxic gasses and particulates. A set of goggles and/or a hood may be included; and more advanced systems connect to a tank of compressed air. However, the devices have found their way into BDSM play, due to the fact that the face…
