It has dual modes.
The O3 & O3+ Mode. is used for its Powerful deodorization and sterilization functions to remove toxic allergens in the air. It can Remove harmful bacteria, germs, mildew, bad odors, benzene, formaldehyde & TVOC and even help extend the storage life of food. (Use this mode only when no animal or human being is directly around the purifier)
Ionic ModeEffectively removes particle pollutants in the air by releasing a tremendous amount of negative ions.Dispel air pollutants such as dust, smoke and PM2.5 and Increase environmental anion concentration to freshen the air.