MSA Ultra Elite® and Ultravue® Small Black Demand Full Mask Type Facepiece with Nose Cup has speaking diaphragms that helps to provide intelligible short-range voice communications while the optional ESP® mask communications system offers voice amplification and/or interface with two-way radios. Facepiece made of silicone features an inhalation and exhalation check valve that work together to help in preventing the exhaled air from entering the mask-mounted regulator and polluting the internal regulator components. As a result, it improves the reliability and durability of the regulator along with reduced frequency maintenance. Facepiece comes with the EZ-Don™ Facepiece harness that offers the same fit and comfort as the standard rubber harness but renders a rapid donning and simplified method of adjustment.