emission of CFC is more than ________device
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CFCs: Chlorofluorocarbons, commonly called R-11, R-12, R-502, R-500, have chlorine content which presents a high risk to the ozone layer. ... HFCs: Hydrofluorocarbons, such as HFC-134a, HFC-143a, HFC-125, R-404A, R-407C, R-410A are chlorine free and ozone safe.
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