Protective headgear is a type of safety equipment worn to protect the head from potential hazards. HELMET, earmuff, and hardhat are all examples of protective headgear. A HELMET is a form-fitting headgear that covers the entire head and often has a visor to protect the face. Earmuffs are designed to cover the ears and provide insulation from loud noises. Hardhats are typically made of plastic or fiberglass and are designed to protect the head from falling objects.