... , avoid the sun and rain.Environmentally friendly refrigerant (freon, refrigerants, refrigerant) common model is divided into: R10, ... R11, R12, R22, R32, R123, R124, R125, R134, R134a, R141b, R142b, R143a, R152a ... --- MR12, R134a substitute ...... and other models.Refrigerant Freon, Refrigerant, snow species: Mainly used in home air conditioners ...