Which safety device is used to prevent falls when working at heights?

A harness and lanyard system is specifically designed to prevent falls when working at heights. The harness attaches securely to the worker's body, distributing the force of any fall across the body and reducing the risk of injury. The lanyard connects the harness to an anchor point, ensuring that if a worker slips or loses their footing, they are restrained and prevented from falling to the ground.

This personal fall arrest system allows for greater mobility while providing critical safety measures. It is commonly used in various high-risk jobs, including construction, maintenance, and any work involving ladders or scaffolding.

Other options, while important for safety in different contexts, do not serve the same specific purpose as a harness and lanyard. A hard hat protects the head from falling objects but does not prevent falls. A safety net is used to catch individuals who fall but is not worn directly by the worker. A safety rope may assist with stability but does not offer the same level of fall protection as a harness and lanyard system.