R-12 and R-22 refrigerants were the best. They are the most efficient for cooling and best in lubricity for compressors. Unlike R-134 and newer refrigerants that are carcinogenic if you are exposed. The funny part is that R-12 and 22 continue to be used in China.
R-12 and R-22 refrigerants were the best. They are the most efficient for cooling and best in lubricity for compressors. Unlike R-134 and newer refrigerants that are carcinogenic if you are exposed. The funny part is that R-12 and 22 continue to be used in China.