The benchmark in half masks. Made from 100% medical grade silicone, the wide sealing area provides exceptional fit and comfort. Cradle suspension features woven straps that provide for maximum mobility without sacrificing support. Easily converts to PAPR or supplied air. - North 7700 Series Half Mask Respirator, Material: Silicone Facepiece, Polyethylene, Polypropylene, Elastic Head Harness, Threaded Connection, Suspension: Yolk and Cradle.