Summary: If you are up to date on the news, you must have heard that some substances, like refrigerants used in air conditioning systems have been regarded as Ozone-damaging.
The issue is that with age, the packed air conditioners may be prone to leakages which let the refrigerants emit out and mix with surrounding air. Before the 31st of December, 1995, the commonly used refrigerant in old cars, commercial air conditioning systems and refrigerators were CFC-12 or R-12.
In today’s times, the refrigerant used in the air conditioners is R-22, which is a (hydrochlorofluorocarbon) HCFC. Although, it is safe to use, it might still be a dangerous substance if it reaches the stratosphere. In the coming times, production of this substance will also phase out.
Nowadays, in the new air conditioners of cars, R-134a, is used as the refrigerant, which is an HFC (hydrofluorocarbon) and does not contain the chlorine atoms which casuse damage to the ozone.
The first producer of residential air conditioners, Carrier, uses the WeatherMaker 134a, as refrigerant. In progress, other manufactures are now making systems which use HFC refrigerants and do not cause a threat to the ozone.
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