Arc Flash

Arc flash is the intense burst of ultraviolet and infrared radiation produced when an electric welding arc forms. It can occur instantly when striking or breaking an arc and may cause severe eye injury even from brief exposure. Unlike sparks, arc flash radiation is invisible but extremely damaging. Why it matters: Welding helmets filter harmful radiation from arc flash, protecting eyes from burns and long-term damage. Understanding arc flash helps buyers choose helmets with proper shade range and safety certifications