Safety helmets or Hard Hats are designed to protect the head against falling objects and the side of the head, eyes, and neck from any untoward impacts, bumps, scrapes, and electrical exposure, etc.
A safety helmet is composed of three elements: The cover (outer part) protects the head from impact. The harness (inner part) provides shock absorption. The chinstrap, an adjustable strap under the chin, keeps the helmet on the head.
Protection against head injuries. Safety helmet are designed to protect the head against falling objects and the side of the head, eyes, and neck from any untoward impacts, bumps, scrapes, and electrical exposure, etc