You can read about it in the wikipedia page [0]. This refrigerant isn't manufactured anywhere anymore because it was creating a hole in the ozone layer. [0] ht

You can read about it in the wikipedia page [0]. This refrigerant isn't manufactured anywhere anymore because it was creating a hole in the ozone layer. [0] https://en.wikipedia.org/wiki/Dichlorodifluoromethane https://en.wikipedia.org/wiki/Dichlorodifluoromethane