For welding workers, welding helmet is necessary, because it plays a vital role. There are three main purposes.
The first is personal protection in the process of welding, including protecting face and eyes.
The second is prevent the welding head of workers from arc ultraviolet light and splash bead burns. Then reduce the damage of welding arc light to the eyes and the head. The third is prevent the splash damage to eyes and head.
Due to these essential effect, welding helmet is widely used in welding industry, especially auto darkening welding helmet.