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What are the commonly used air conditioning refrigerants nowadays?

1 Answers

MacAdaline

07/25/25 1:57am

Nowadays, the commonly used air conditioning refrigerant models include R22 refrigerant, R-134a refrigerant, R290 refrigerant, R410A refrigerant, etc. The following are the differences between these refrigerant models: 1. Environmental friendliness varies: R22 is a single refrigerant, chemically known as "chlorodifluoromethane," with a boiling point of -41°C. It is colorless and odorless but belongs to the Freon family. When released into the air, it may damage the ozone layer, causing environmental issues. In contrast, R-134a refrigerant is relatively more environmentally friendly and is currently a commonly used refrigerant. 2. Different usage areas and environments: R-134a (tetrafluoroethane) has a boiling point of -26.5°C, which is relatively low. When used in heat pumps, once the ambient temperature drops, the heat efficiency of the heat pump decreases. Therefore, this refrigerant is not as widely used as R22 and is generally employed indoors or in tropical regions. 3. Safety levels differ: R290 is a new environmentally friendly refrigerant, but when mixed with air, it can easily cause safety accidents such as explosions. Other refrigerants are relatively safer and do not pose explosion risks.

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