Chlorofluorocarbons (CFCs) were replaced hydrocarbons such as hydrofluorocarbon. CFCs released chlorine in the stratosphere when broken down by the sun’s UV light, which contributed to ozone depletion. HFCs contain no chlorine and have an “Ozone Depletion Potential” of zero.
I totally agree to Mike’s answer. CFC’s were replaced by HFC’s which do not have chlorine. Chlorine is known for its ability to deplete the ozone layer rapidly. Such appliances such as refrigerators are filled with Hydrofluorocarbons instead of Chorofluorocarbons
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