... Ozone and battery Product Function:1. Disappear the smoke and dirty, make air ... broken in order to make them die.4. Circling function: it can work Automatically, and cycling, the Indicator ... Casually when using it in the summer, and change battery quickly. The outer shell and inner; parts lt ... hot air. the water will make product. corrosion, make battery Decomposed, and lead to trouble.2) 4c# batteries ...