A construction helmet is a type of protective headgear that is worn by workers during building and construction activities to prevent injury from falling objects or other hazards. It typically has a hard shell, reinforced with metal bars for added strength, and includes safety features such as a chin strap to keep the helmet in place while working. The use of a construction helmet is an important part of maintaining workplace safety on any job site where there are potential hazards from falling objects or other risks associated with building and construction activities.