Health Risks of Inhaling Freezer Coolant (HFCs)

Inhaling freezer coolant is extremely hazardous. Most refrigerants are hydrofluorocarbons (HFCs). When exposed to air, they can decompose into hydrogen fluoride and phosgene—highly toxic gases causing severe lung damage and potentially death at high concentrations. HFCs also contribute to ozone layer depletion.

Never breathe refrigerant directly. Use extreme caution when servicing appliances containing these chemicals.