Answer:
Newly designed home refrigerators use Freon as a refrigerant.
Step-by-step explanation:
The substance used in refrigerators is called refrigerant. Since the 1930s, freon gas has been used, but because it is a chlorofluorocarbon (CFC), which affects the ozone layer of the atmosphere, an international agreement has proposed replacing it with other substances that do not produce such a drawback.