XING LASER Welding Helmet Face Shield Welder Mask Safety Glasses For Welding OD5

Materials：Optical Polycarbonate Sheet Invisible light protection wavelength：200-460 nm, 900-2000 nm. Invisible light protection rate: Maximum eye protection rate - OD5(99.999%) Visible light transmission rate: Single Layer - 40%, Double Layer - 16% Weight: 4 oz. Dimensions: 9 in H * 7.6 in W, main face cover area 5.5 * 5.5 in,Frame legs length 5 in. Other features: Light color model can read computer screen, text etc. User friendly for person wearing glasses.