PURPOSE: To uniformly mix ozone generated by a discharge device with the air to be deodorized, to oxidize and decompose malodor by a catalyst and to efficiently decompose excess ozone.

CONSTITUTION: This deodorizer is formed with the ozone supply part consisting of a timer 2 to emit an on signal and an off signal for a specified time, a fan motor 3 to be controlled by the signal from the timer and an ozone generating circuit 4 and a honeycomb catalyst 7. The volume and velocity of the air from the fan is varied when ozone is generated, and the ozone is uniformly diffused into the air to be deodorized and then passed through the catalyst 7.