What is the function of a safety harness while working at heights?

The primary function of a safety harness while working at heights is to prevent falls. When workers are at elevated positions, the risk of falling is significant, which can lead to serious injuries or fatalities. A safety harness is designed to secure the wearer and distribute the forces experienced during a fall across the body. This ensures that if a worker loses their balance or slips, the harness will catch them, thereby preventing a dangerous fall.

While other options like improving visibility, securing tools, and enhancing comfort are important considerations in various work environments, they do not directly relate to the critical life-saving function of a safety harness. The primary goal of utilizing a safety harness is to safeguard the worker's life by minimizing the risk associated with working at heights.