CFC / Hydrofluorocarbon
CFCs or chlorofluorocarbons are among the longest lasting greenhouse gases and lead to global warming. The first CFC-free refrigerator was manufactured in 1992. Since the year 2000, household and commercial refrigerators are produced with a new, different refrigerant. The mixture consists of propane and butane and does not increase the greenhouse effect, but unfortunately, it is flammable.