R 134 a refrigerant, other name, HFC134a, HFC 134 a, four fluorine ethane, brand of commodity is SUVA 134 a, 134a, KLEA Genetron 134a, such as Chinese name four fluorine ethane, English name say - tetrafluoroethane, chemical name, say, four fluorine ethane, chemical formula CH2FCF3. Because of R134a belongs to the HFC class material (not the ODS Ozone - depleting Substances) - so completely does not destroy the Ozone layer, is currently the vast majority of countries in the world recognized and recommended to use environmental protection refrigerants, also is the current mainstream environmental protection refrigerants, widely used in refrigeration and air conditioning equipment ChuZhuang and add in the process of maintenance.