WORKPRO Welding Helmet 4 Arc Sensors True Color Auto Darkening Welding Mask Hood

DIN 4 is the bright state; DIN 5-9/9-13 is the dark state. Safety & Durability: Auto-Darkening welding mask is made of high-quality material PP with impact resistance and high heat resistance. Compliance: ANSI Z87.1/EN379 CE/CSA Z94.3.