Frogen^® 134a (HFC-134a) has been developed by Frogen^® Ltd. to serve as one of the key substitutes for CFCs and HCFCs. Frogen^® 134a is a long-term, environmentally friendly, non-ozone depleting substitute. As a refrigerant, it possesses similar energy efficiency and capacity characteristics as Frogen^® 12 and has an intrinsically low toxicity. Frogen^® 134a is the alternative refrigerant of choice in automobile air-conditioning. It may be used in residential and commercial refrigeration, as well as commercial, and industrial air-conditioning.