Refrigerant R22
R-22 (chlorodifluoromethane) is an ozone-depleting hydrochlorofluorocarbon (HCFC) refrigerant widely used in older air conditioners and heat pumps. Due to environmental damage, it was phased out by the EPA in the U.S., with a complete ban on production and import in effect since January 1, 2020. Only recycled or reclaimed R-22 is currently available, making it very expensive.
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