Most uses of freon, a chlorofluorocarbon (CFC), have been phased out of use in the U.S. according to EPA policy introduced in the 1990s. Alternatives to freon, previously used as a refrigerant, industrial lubricant, and foam ingredient, were substituted due to freon contributing to ozone depletion when released into the atmosphere. Currently the largest users of freon are companies that still use it to clean metal surfaces.
The above answer is true, CFCS aren’t really used anymore. It causes damage to the environment, espcially the ozone layer. Today, the gas has mainly been replaced by the gas called HFC -134a or tetrafuorethane. It turns into a liquid when cooled to -15.9 degrees Fahrenheit.
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