Fibre-Metal® Shade 3 Faceshield Window 4178IRUV3Fibre-Metal® 4178IRUV3 Shade 3 high performance faceshields, as designated, are SEI certified to comply with current ANSI standards. SEI certification is your assurance of consistent quality and performance.Fibre-Metal® 4178IRUV3 Shade 3 faceshield windows are injection molded from propionate, which is superior to other window materials in every significant performance characteristic. They are pre-formed at the factory to the exact curve of our crown protectors for easy installation, an exact fit and a perfect seal against dust, dirt and debris. All High Performance windows are .060" thick for an extra margin of protection, yet they cost no more than ordinary .040" thick windows.Fits Fibre-Metal® F400 & F500 faceshield headgear
