Translation guide
A substance used for cooling, such as in air conditioners or refrigerators. In Japanese, the most common term is 冷媒 (reibai), but other expressions exist depending on context.
The fluid used in refrigeration cycles to absorb and release heat.
Standard technical term for refrigerant in HVAC and engineering contexts.
Referring to a particular chemical compound used as a refrigerant, such as R-134a or ammonia.
Attach 冷媒 to the chemical name to specify the refrigerant type.
R-134a冷媒は自動車のエアコンに使われます。
R-134a refrigerant is used in car air conditioners.
冷媒 (reibai) is the precise technical term for the working fluid in a refrigeration cycle. 冷却剤 (reikyakuzai) is broader and can mean any cooling agent, including cutting fluids or coolants. In HVAC contexts, 冷媒 is preferred.
このエアコンは新しい冷媒を使っています。
This air conditioner uses a new refrigerant.
General term for a cooling agent; can refer to refrigerants but also other cooling substances like coolants in machining.
冷却剤が漏れているようです。
It seems the refrigerant is leaking.
Literally 'freezing agent'; used in some contexts for refrigerants, especially in older or specific industrial settings.
冷凍剤としてアンモニアが使われていた。
Ammonia was used as a refrigerant.
Common term for CFCs and HCFCs; often used generically for fluorocarbon refrigerants, though technically refers to chlorofluorocarbons.
フロンガスはオゾン層を破壊する。
CFC gas destroys the ozone layer.
Refers to alternative refrigerants like HFCs that replaced ozone-depleting CFCs.
代替フロンは温室効果が高いものもあります。
Some alternative refrigerants have a high greenhouse effect.