This protective eyewear was manufactured to meet the American National Standards Institute (ANSI) Z87.1. Do not use this eyewear in an industrial setting without first referring to the ANSI Z87.1 standard, your safety supervisor or a safety specialist to insure you are using proper protection. These lenses are impact resistant and provide protective against impact hazards. Safety lenses provide limited protection and are NOT unbreakable. Some operations may require machine guards, goggles, face shields, special filter lenses or other safety equipment. Do not use safety glasses alone when your eyes are exposed to molten metal, laser light, splash or chemical operations.