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What is the difference between R22 and R410A (Freon vs. Puron)

Freon vs. Puron
The term "refrigerant" means any Class II substance used for heat transfer in a refrigerating system, according to the U.S. Environmental Protection Agency. Refrigerant is the gas used to heat or cool the air in heat pumps and air conditioners. Without refrigerant, these appliances would operate only as fans.

Most residential air conditioners and heat pumps rely on hydrochloroflurocarbons, or HCFCs, for this purpose. The one most often used is called HCFC-22, or R-22, known as Freon®.

About 10 years ago, the federal Clean Air Act was amended to begin a mandatory phase out of the production and use of many ozone-depleting substances, including R-22 and R-12, which is found in vehicle air conditioning. Products using R-22 will be phased out by Jan. 1, 2010, and a total ban on production and importation becomes effective in 2020.

Puron® is a brand name for a refrigerant called R-410A. Several air conditioning and heat pump manufacturers are starting to use Puron in their products because it's reported to be nonflammable, generally viewed as nontoxic, and has less impact on atmospheric ozone.

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