The Cobalt Blue Metal Working Filter Lens | Large 4.5 x 5.25 is a replacement lens for a large window welding helmet, intended for furnace observation, torching and brazing. These Phillips Safety lenses have a large rectangular shape with dimensions of 4.5″ H x 5.25″ W and are available in Cobalt Blue/Neotherm shades 4, 5, 6, and 8. These Cobalt Blue lenses absorb UV Radiance and harmful Infrared Emissions in the 780 to 2000nm range, and can be used with temperatures ranging from 1,290 to 1,800° Celsius. In addition, all of our Neotherm lenses are certified to EN 166 and EN 171 safety standards. Do not use these lenses for welding applications.
For more options, check out our Welding Lens collection.