Top Optical Clarity 1/1/1/1: Perfect top optical class 1/1/1/1 is comfort and secure, provide you with clear view and the best protection(Ratings from 1 to 3, 1 is the best and 3 is the worst ); Diffusion of light, variation of luminous transmittance and angular dependence allowing you to see clearly at any angles.
More Versatile Use: Full Shade Range 3/4-8/9-13, Viewing Area 3.86" x1.69", covering most common welding applications including TIG, MIG, MAG, MMA, Plasma cutting with grinding feature; Meets EN 379, ANSI /ISEA Z87.1-2015, safety standards.
Ultimate Clear and Highest Protection Level: Light state: DIN 3, Up to 14% Light transmittance, nearly 3 times more than the normal filter(DIN4, 5% Light transmittance); Great UV/IR Protection DIN16 protecting your eyes from damaging by harmful lights, UV transmittance =0.00002%, IR transmittance =0.03%.
Fast Response and Adjustable Sensitivity: Fast auto respond time(light to dark)<1/25000 seconds, super quick to prevent your eyes from being damaged by the arc; Sensitivity and delay is adjustable to meet different environments and task durations.
Well balanced and Convenient: High impact PA material is corrosin resistant and flame retardant, more durable and light compared to PP; Adjustable headband can reduce the fatigue of the welder's head (neck), brings better comfort.