To enhance deodorizing efficiency and dust collection efficiency by using an ionic ozone and a fan filter type active coal filter jointly.

Air 11 sucked from a suction part 2 of a device 1 is removed larger dust when it passes through a pre-filter 3, and is strongly deodorized with synergistic effect of the deodorizing effect of the active coal, when it passes through a filter 4 incorporating active coal, provided between a minus electrode 6 and a plus electrode 5, with the deodorizing effect by the ozone generating with the minus electrode 6 and plus electrode 5. At the same time, the dust is strongly collected, with the synergistic effect of the fine powder and dust removing effect by the minus and plus ion electrodes 5, 6 with the dust removing effect by the filter 4. The sucked contaminated air 11 is strongly deodorized and also collected, cleaned and is discharged 12.