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Hard hats are one of the most easily recognizable pieces of personal protective equipment, or PPE. In fact, the hard hat is practically a universal symbol for construction and industry, and for good reason. Since being made mandatory for the construction of the Golden Gate Bridge way back in 1933, hard hats have protected the heads of laborers around the world. Even if you’ve worn hard hats, it never hurts to go over the basics, including types, classes, colors, upkeep, and replacements. By the end of this article, you’ll know what kind of protection your hard hat offers and how to ensure it's in good working order.

What is a Hard Hat Made Of?

Hard hats are made of two main components: the outer shell and the inner suspension. The outer shell is formed from high-density polyethylene (HDPE) that has been tested and approved by both the Occupational Safety and Health Administration (OSHA) and the American National Standards Institute (ANSI).