Helmet shells are made of durable impact resistant nylon. Function controls are protected and easily accessed inside the hood on the cartridge.
Filter cartridge is 4.5? X 5.2511 x 0.35? (133 x 114 x 0.9mm). Filter has an operating temp. Range of 23° F 113°F (-5°C +55°C) and a storage temp. Range of -4° F 158°F (-20°C +70°C), Optical class 1/1/1/2. For MIG, TIG, Stick, Plasma, Arc cutting, Gas and Grinding.