R134a ,R454b, R410A, R404,R22 Refrigerant gas Comparison of R134a R410A R404 Refrigerant gas Feature  R22 (Chlorodifluoromethane) R134a (Tetrafluoroethane) R404A R410A R454b Type HCFC (Hydrochlorofluorocarbon) HFC (Hydrofluorocarbon) HFC blend (R-125, R-143a, R-134a) HFC blend (R-32, R-125) HFO/HFC blend (R-32, R-1234yf) Common uses Older residential and commercial air conditioning and refrigeration systems Automotive A/C, commercial refrigeration, and […]