noun
Refers to the system or process of controlling indoor air temperature, humidity, and cleanliness.
このビルには空気調節が完備されている。
This building is fully equipped with air conditioning.
エアコン is the common abbreviation for air conditioner, while 空気調節 is a more formal or technical term for the system or process.
Compound of 空気 (air) and 調節 (adjustment, regulation).