As for appliance refrigerant, the only good news is that the refrigerant used in most home-use air conditioners is HCFC-22. This differs from CFC's in having the addition of the element hydrogen, and has very little destructive effect on the ozone layer, so that it will only be completely banned in the year 2020.
至於家電產品的冷媒，唯一值得慶幸的是，一般家用冷氣（箱型及窗型）所使用的冷媒，是屬於氫氟氯碳化物（HCFC-22），這類產品比氟氯碳化物（CFCs），多了一個氫元素，對臭氧層的破壞很小，預定到西元二○二○年左右才完全禁用。