What is the function of a GFCI in asbestos removal work?

The function of a Ground Fault Circuit Interrupter (GFCI) in asbestos removal work is primarily to prevent electric shock. GFCIs are designed to protect individuals from the risks associated with electrical hazards, especially in environments where moisture is present, such as during asbestos removal. This is particularly important because workers may be utilizing tools or equipment in damp conditions, thereby increasing the likelihood of electric shock.

By rapidly monitoring the flow of electricity through the circuit, a GFCI can detect imbalances that may occur when current is leaking to the ground. If such an imbalance is detected, the GFCI automatically cuts off the electricity supply, significantly reducing the risk of serious injury or death from electric shock. This safety feature is crucial in maintaining a safe working environment during potentially hazardous operations like asbestos removal, where the presence of other dangers may make electrical safety even more critical.

The other functions presented in the options, such as enhancing visibility or monitoring temperature, do not pertain to the electrical safety context provided by a GFCI. Similarly, while securing tools is important, it is unrelated to the electrical protection that a GFCI offers.