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.
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.
It seems the refrigerant is leaking.
Literally 'freezing agent'; used in some contexts for refrigerants, especially in older or specific industrial settings.
Ammonia was used as a refrigerant.
R-134a refrigerant is used in car air conditioners.
Common term for CFCs and HCFCs; often used generically for fluorocarbon refrigerants, though technically refers to chlorofluorocarbons.
CFC gas destroys the ozone layer.
Refers to alternative refrigerants like HFCs that replaced ozone-depleting CFCs.
Some alternative refrigerants have a high greenhouse effect.