... mask is made of special nylon, has hig Auto darkening welding helmet KT2008•Classical design, reasonable ergonomic structure,comfortable and convenient ... nylon, has high enough strength and operation temperature for welding.•Ample mask space,safety structure,excellent face protection for ... : -10°C-55°C(14°F-131°F)•Suitable for a variety of color spray paint and decals. Auto Darkening Welding Helmet