Shade 4 Clip-on/Flip-up protective spectacles. They must be worn over an approved ANSI Z87.1 safety lens and frame with side shields for severe impact resistance and protection. A minimum of a shade 3 or 4 lens is recommended by OSHA and AWS ANSI/ISEA Z87.1 when brazing.
Misuse of this product may result in serious injury. The clip-on/flip-up lens enclosed within, complies with ANSI Z87.1 to provide protection against ultraviolet, visible or infrared light from soldering or brazing. It is not impact resistant. It is not to be used for gas welding, cutting, electric/arc welding, or any other operation that exposes the wearer to ultraviolet or infrared over the lens shade designation that is inscribed on the flip-up attachment.
The flip-up attachment must be worn over an approved ANSI Z87.1 rated safety lens and frame with side shields for severe impact resistance and protection. Consult with your supervisor or safety manager for proper shade designation.