A variety of hazards in the welding process: ultraviolet, infrared, light, welding fumes, and organic gases. Handheld used the welder is not usually darkening welding helmet, needs the eyes covered in arc moments, in the welding process, often makes the eyes from harmful radiation of the light in an instant. Auto darkening welding mask solves the problem, you can maximize provide eye protection for welders. Auto darkening welding mask is to use liquid chip signal for induction welding arc under the control of the electronic controller, LCD tablets in a very short period of time, a bright State into a dark state. In order to protect the eyes from damage, but also without the use of mechanical action to move the lens. Auto darkening welding mask is mainly composed of masks, bodies, wearing a body shell, Windows is composed of three parts. When welding mask is protection of the shell body of the solutes of light pollution and welding spatter. It assumes the Windows installation and positioning of institutions. UV window is protection during welding and the effects of eye injuries are visible and invisible matter. Wearing body mainly fixed mask in the body's position, making users more convenient, more efficient completion of the work.