Apparatus and method for controlling air cleaning

Abstract

Disclosed is an apparatus and method for controlling an air cleaning. The apparatus includes an air cleaning element, a current detector, an AC high-voltage generator and a control unit. The air cleaning element generates negative ions and ozone using a plasma discharge and cleans indoor air by the negative ions and ozone. The current detector detects a state of current passing through the air cleaning element. The AC high-voltage generator generates an AC high-voltage, and applies the AC high-voltage to the air cleaning element. The control unit varies a magnitude of the AC voltage applied-to the air cleaning element by the AC high-voltage generator depending on a current detecting signal received from the current detector. Therefore, ozone is adequately generated below a limit value depending on a state of indoor air, thereby increasing air cleaning performance so as to sterilize and clean contaminants more efficiently.

Dependencies are inferred from the claim text.