• R-22 is a hydro-chlorofluorocarbon (HCFC) which reacts with the ozone layer of the atmosphere and makes holes in it. The holes permit the influx of harmful UV rays from the sun into our biosphere. This is dangerous for the wellbeing of living things on earth. R-410A is also a hydro-fluorocarbon (HFC) which does not contribute to ozone depletion. It has become the new standard for U.S. residential air conditioning systems in 2015.
• Puron is more efficient than Freon. It can absorb and release more heat than R-22. You can save better on energy cost with it. Also, the stress on the A/c compressor is reduced. You run a lesser risk of compressor burnout due to overheating.
• Compared to Freon, R-410A works at higher pressure. Therefore to withstand this pressure, modern A/c devices are integrated with heavy-duty compressors. This reduces the chances of cracking of the compressor. If you were to put R-410A refrigerant in an older unit tuned for R-22, the pressure would be too much and the unit would crack.
• The compressor of an air conditioner needs to be lubricated for proper operation. R-22 air conditioners use mineral oil and R-410A systems use synthetic oil. The latter is generally more soluble with R-410A than mineral oil is with R-22. This implies Puron is more efficient than Freon.