Made of hycar rubber that offers excellent fit and comfort while providing rapid donning as well as simplified method of adjustment. Facepiece without nosecup has inhalation check valve and exhalation valve that work together to avoid exhaled air from entering the mask mounted regulator and contaminating the internal regulator components. Speaking diaphragm offers good short-range voice communications. Lens is supported with two-piece color coded lens ring and it offers superior scratch and chemical resistance. Includes five suspension head straps and roller buckles to keep in place while cutting down on hair entanglement. Features a turned lip around the edge for a tight face seal and a large chin cup for easy positioning.