The Jackson Safety BH3 Auto Darkening Welding Helmet, Balder Technology is a great piece of safety equipment for a welder. This helmet, specifically, has an auto darkening filter lens for optical clarity, diffusion of light, variation of luminous transmittance, and angular dependence, so the welder can see clearly at different angles. This helmet also protects the wearer's eyes from radiant energy during welding and is equipped with sensitivity and delay settings for adaptability for different environments and task duration. You are also guaranteed to have a comfortable fit with this product because it three headgear adjustments and is compatible with hard hats and magnification filters.