Reference

EH rated means Electrical Hazard under ASTM F2413: the boot's sole and heel withstand 18,000 volts for a minute, dry, as secondary protection against accidental contact. This guide covers the test behind the letters, the wet-conditions fine print, EH vs dielectric vs SD vs CD, the label line, and a worked apprentice boot spec.

A face shield guards the whole face, but it is secondary protection that requires safety glasses underneath. This guide compares polycarbonate, acetate, and mesh windows, explains tints and IR shades, weighs headgear and chin guards, and walks a real grinding selection - all mapped to the ANSI Z87.1 and OSHA 1910.133 rules.