Which refrigerant type is known for being ozone-friendly?

Natural refrigerants are considered ozone-friendly because they do not contain ozone-depleting substances and have minimal impact on the ozone layer. Common natural refrigerants include ammonia, carbon dioxide, and hydrocarbons. These substances are naturally occurring and typically have low global warming potential.

In contrast, HFCs (hydrofluorocarbons) and HCFCs (hydrochlorofluorocarbons), though replacing certain older refrigerants, can still contribute to ozone depletion or have a significant global warming potential. Halons, primarily used in fire extinguishing systems, are also harmful to the ozone layer. Therefore, choosing natural refrigerants aligns with environmental goals related to ozone protection and climate change.