Sellstrom 32166 Polycarbonate Replacement Shade 6 IR Flip Front Window, For DP4 Protective Faceshield Clear anti-fog window with a flip-down IR window, providing uninterrupted protection for grinding, cutting, and brazing operations UV absorbing polycarbonate windows Meets ANSI Z87.1-2003 Standards CUL certified to meet CAN/CSA-Z94.3 standards