Welding mask refers to a tool that protects the safety of workers in welding and cutting operations. It is a high-tech product integrating optics, electronics, anthropology, materials science and other disciplines. The light sensing system on the lens can instantly detect the generation and disappearance of arc light during welding, and quickly drive the liquid crystal shading and discoloration to achieve safe and effective filtering of harmful light, so as to protect the welder's eyes and face from the damage of arc radiation. The welding mask consists of a viewing window, a filter, a protective sheet, and a mask. There are four types: hand-held face masks, headband face masks, and safety helmet face masks and safety helmet front hanging glasses masks.

