Question: which gases are used in refrigerator?
Answer: R-22 Chlorofluorocarbons. This gas is common in older refrigerators, but was ozone-depleting and thus phased out. ...  R-134A Tetrafluoroethane. This gas can currently be seen in the refrigerator. ...  R-438A Freon. ...  R-600A Iso Butane. ...  Tetrafluoroethane. ...  Chlorofluorocarbon. ...  Polystyrene. ...  Acrylonitrile.