Do some countries still use R12 and R22 freons?

Yes, some countries still use R12 and R22 refrigerants, although their usage is declining due to environmental regulations. R12, a chlorofluorocarbon (CFC), has been largely phased out globally under the Montreal Protocol due to its ozone-depleting potential. R22, a hydrochlorofluorocarbon (HCFC), is also being phased out, with many countries implementing timelines for its elimination. However, in certain regions with less stringent regulations or older equipment, these refrigerants may still be in use.