A technician is servicing a chiller in a small equipment room with poor ventilation. Which hazard is the greatest immediate concern if refrigerant leaks in that confined space?
Explanation
Most refrigerants are heavier than air and can accumulate in low or confined spaces, displacing oxygen and causing asphyxiation, which is the greatest immediate danger in a poorly ventilated room. Refrigerants do not conduct a shock hazard on their own, most common refrigerants are not readily flammable, and humidity is not the concern. Proper ventilation and refrigerant monitors help protect against oxygen displacement.
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