Our Full Mask continuous flow supplied air respirator is made of silicone rubber for durability and will hold its shape even in extreme heat and cold. The double sealing flange provides an improved face-to-mask seal and a deep chin pocket provides a better, more comfortable fit. The replaceable polycarbonate lens offers a wider, distortion-free viewing area with an anti-fog, anti-scratch coating. A removable hairnet means greater comfort and fits easily under a hard hat. The unique “over the shoulder” hose design clips at the collar and an adjustable belt holds the air hose out of the way of work. It comes with OBAC quick connects. One size fits most. NIOSH approved.