A welding mask is a protective gear worn by welders to shield their eyes and face from harmful light and sparks produced during welding. These masks are designed to filter out intense ultraviolet (UV) and infrared (IR) radiation, which can cause serious eye damage. Many welding masks come with a darkened lens that automatically adjusts to the brightness of the welding arc, providing optimal visibility and safety. In addition to protecting against light, welding masks also guard against flying debris and heat. They are often made from durable materials that can withstand high temperatures. Some masks are equipped with features like adjustable headbands and ventilation systems for added comfort during long welding sessions.