ProGARM Safety Helmet, Class 1 ARC, White (ABS) 2660 HELMETStroke absorption after conditioning in temperatures of (-30°C) and (0°C) Resistance to penetration after conditioning in temperatures of (-30°C) and (+50°C) Live working symbol (Two Triangles) Working temperature range (-30°C) and (+50°C) Wheel ratchet adjustment Adjustable head circumference from 53-63cm Two level height adjustment feature Electrical insulation (Class 0) 1000V AC, 1500V DC Protection against molten metal splash - symbol MM Protection against lateral deformations - symbol LDVISORLevel of protection 1.2 (transparent face shield) Level of protection 1.7 (dimmed face shield) Protection against droplets and splashes of liquids (3) Optical powers, light transmission factor, luminance factor of dispersed light Optical Class 1 Resistance to medium energy impact (speed stroke up to 120m/s, mass of ball 0.86kg) (B) Protection against short circuit electric arc (8) Protection against thermal hazards of an electric arc, Class 1 (box test; 4kA/0.5s) VLT factor > 75% for class 0 Protection against molten metal and hot solids (9) Resistance to surface damage by fine particles (KWork & Wear Direct Exclusive Brands ProGARM Safety Helmet, Class 1 ARC, White (ABS) 2660 | Work & Wear Direct