Is there freon in the car refrigerator?

Car refrigerators currently on the market are divided into semiconductor car refrigerators and compressor car refrigerators.
There is only a compressor inside the compressor-type vehicle refrigerator. The principle of semiconductor refrigerators is to use the energyChina Car Cooler Box Manufacturers

level of the charge in the material to perform the heat conversion. The principle of compressor refrigeration is to compress the refrigerant, so

neither type of refrigerator has Freon.