Which System is Better for Your Home?
Freon, a chemical refrigerant, has been used in refrigerators and air conditioners for decades. However, the U.S. banned the use of hydrochlorofluorocarbons (CFCs), forcing manufacturers to stop using Freon. In the Clean Air Act (CAA) of 1990, no newer models of air conditioners could use Freon after 2010 and production ceases by 2020.
Puron is the new refrigerant of choice, and the CAA of 1990 does not ban it.