... chosen 4,Anti-fog,anti-scratch 5.Clear lens safety glasses 1,Originated from Taiwan2,Metal ... chosen4,Anti-fog,anti-scratch treatment 5, Clear lens safety glasses Product PerformanceSafety Glasses, Medical Glasses, ... different purposesa) Grey : Outdoor .Block over UVA&UVBb) Clear : General purposesc) Yellow : Night driving and pilot ... manufacturing and personal safety practices. Clear lens safety glasses