AIR CLEANER

PROBLEM TO BE SOLVED: To provide an air cleaner which is capable of effectively trapping smoke of tobacco and a suspended material including mist and dust, and capable of effectively trapping a suspended material including mist and dust by ion. SOLUTION: In the air cleaner in which air is allowed to flow in a passage which forms ion atmosphere for removing the material consisting of liquid and solid particles suspended in air, a pair of electrode plates 11,12 is arranged and sheet materials 13,14 formed of paper as a material on the surface of the opposite side of a pair of the electrode plates are arranged. Also, the passage 15 of air flowing between these sheets is formed and a number of projections 17 to protrude towards the inside of the passage from the surface are formed. A pair of the electrode plates are connected with an ion generating device 21. The air cleaner has a constitution so that the suspended material is attached to the surface of the sheet material having projections by controlling the electrode plate to the different polarity from the polarity in which the suspended material is charged in order to trap the suspended material in air. COPYRIGHT: (C)2008,JPO&INPIT