Many automobile air conditioning refrigerants are Freon, but some automobile refrigerants are not Freon, which needs to be determined according to the type of automobile. Some cars use R 134a, which is a chlorine-free refrigerant and can replace Freon.

1. Freon, also known as Freon, whose name comes from English Freon, is a registered refrigerant trademark of DuPont Company in the United States. In China, there are differences on the definition of freon. Generally defined as the general term for saturated hydrocarbon halogenated compounds, mainly methane, ethane and propane. According to this definition, freon can be divided into four categories, such as CFC, HCFC and HFC. Some scholars define freon as CFC refrigerant, and in some data, freon only refers to dichlorodifluoromethane.

2. Freon is colorless gas or volatile liquid at room temperature, tasteless or slightly smelly, non-toxic or low-toxic, and its chemical properties are stable. Million car purchase subsidy