Translation guide
A controlled environment with low levels of pollutants, used in manufacturing or scientific research. In Japanese, the English loanword is standard, but native terms exist for specific contexts.
Refer to a cleanroom as a physical facility or controlled environment.
Discuss cleanroom classifications, technology, or requirements.
Used when talking about cleanroom technology as a field.
クリーンルーム技術は急速に進歩しています。
Cleanroom technology is advancing rapidly.
クリーンルーム is understood by most Japanese speakers in technical contexts. It is safe to use in conversation and writing. For very formal documents, 清浄室 may be preferred.
The most common and widely understood term, borrowed from English. Used in industry, technology, and general contexts.
この工場にはクラス100のクリーンルームがあります。
This factory has a Class 100 cleanroom.
A native Japanese term meaning 'purification room'. More formal and often used in technical or regulatory documents.
半導体製造には清浄室が不可欠です。
A cleanroom is essential for semiconductor manufacturing.
Literally 'dust-free room'. Less common, but may appear in older or specific industrial contexts.
無塵室での作業は特別な服装が必要です。
Work in a dust-free room requires special clothing.
Means 'cleanliness level' or 'class of cleanliness'. Used in specifications.
この部屋の清浄度はISOクラス5です。
The cleanliness level of this room is ISO Class 5.