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Therefore, when inspecting the weld, you will need to remove the helmet. The lens will not switch from a light state to a darken state. When the helmet is in the down position, you will see through the dark lens. There are two common styles of welding helmets, a passive and an auto-darkening variable shade.Ī passive helmet has a dark tinted lens, typically a shade #10. General standards ensure that the helmet lens protects the welder from anything that could affect the eyes, which includes ultraviolet and infrared filtering regardless of the shade settings. In the United States, welding helmets need to meet ANSI standards - and in Canada the helmets need to be CSA compliant. One of the foundational features of any helmet is safety and compliance. In addition, the welding environment should be evaluated to ensure appropriate ventilation and respiratory protection. Safety glasses should always be worn under the welding helmet. Welding PPE includes, but is not limited to, eye, face, hand and body protection. The use of quality personal protective equipment and safe welding practices must be a top priority for welders, regardless of the type of welding process.