Welding helmets protect welder's eyes, face, and neck from burns, sparks, heat, and UV light.  

Decide whether to choose a helmet with a passive lens (fixed shade) or auto-darkening lens. Welders who work with different processes often prefer helmets with adjustable auto-darkening filters, while welders in dynamic light conditions may prefer a passive lens. It's also important to consider the number of light sensors in the helmet to ensure consistent and reliable functioning.