Why the Days of R-22 Are Numbered
R-22 is perhaps the most popular air conditioner refrigerant today. It’s in the hydrochlorofluorocarbon (HCFC) group, a series of chemicals that replaced the notoriously ozone-depleting chlorofluorocarbons (CFCs). But HCFCs are just a Band-Aid solution, and, like all “bandages”, they must be changed eventually.
