4-1/2" x 5-1/4" Safety Plus Polycarbonate Lens

Safety Plus passes ANSI and Federal impact and penetration tests. Meets ANSI Z87.1-1989 Safety Plus which is used in the fixed portion of the flip-front helmet is designed to (protect) the welder's eyes when the flip-front is lifted. Cover plate only protects the filter plate from damage during the welding operation. However, we do not recommend to use Safety Plus as a cover lens. Safety Plus is made of polycarbonate. This is not suitable as a cover lens; Sta Kleer and CR39 are more durable as a cover lens and last up to 4 or 5 times longer than polycarbonate