function depends on Ozone and battery Product Function:1. Disappear the smoke and dirty, make air clean: anion generator absorb the smoking and dirty with the electro static, and fellow because of Earths gravity.2. Refreshing and disinfecting:O3 can Effective disppear remaining pesticide,hormone of birds and animals, Delay vegeables and fruits refreshing time.3. Deodorant disinfector: anion ...