M1 Air supply hood is made of high level complex material. Hood is of wide scope and impact resistant, light in weight. There is a tiny gap between the seal part that can be used to exhaust. Special air flow design in the breathing tube inside the hood can protect the cover lens from fogging. It can protect the head and front part with adjustable head band, washable. Be careful the lens from scratching.
M1 full mask should be used together with PRF-102R, PRF-103R or PRF-104H respirator.