R22 refrigerant, or R22 Freon, is used in a number of AC systems built before 2010. It was discovered that the chemicals that makeup R22 are detrimental to the ozone layer. The Environmental Protection Agency (EPA) launched a 10-year plan in 2010 to phase out ozone-depleting substances.

Chlorodifluoromethane or difluoromonochloromethane is a hydrochlorofluorocarbon (HCFC). This colorless gas is better known as HCFC-22, or R-22, or CHClF. 2. It was commonly used as a propellant and refrigerant.

2024年11月15日 · R22 is the short name for hydrochlorofluorocarbon 22, or HCFC-22. It’s a refrigerant responsible for absorbing and removing heat from home air conditioners and heat pumps. As of January 1, 2020, it’s illegal to produce or import R22 in the U.S. after an amendment to the Clean Air Act.

On January 1, 2020, the U.S. Environmental Protection Agency (EPA) banned the production and import of R-22. But units manufactured in 2009 and earlier still use R-22 today. Its use will …