ozone generator; ozonizer; ozonator
A device that produces ozone, often used for sterilization, deodorization, or medical purposes.
Hospitals use ozone generators to sterilize the air.
This ozone generator is effective for deodorizing rooms.
オゾン is ozone itself, while オゾン発生器 is the device that produces it.
Standard kanji spelling; 器 is common for devices.
Alternate spelling using 機 (machine); both are used.
Compound of オゾン (ozone, from German Ozon) + 発生 (generation) + 器 (device).