extractor
/ɪkˈstræktə(r)/noun
often with modifier
1- a machine or device used to extract something提取器, 萃取器：
a juice extractor
榨汁机。
1.1
- as modifier denoting a device used to ventilate and remove bad smells from an area换气扇, 排气扇：
the engine room's extractor fans.
轮机舱的换气扇。