PROBLEM TO BE SOLVED: To obtain an air treatment apparatus equipped with functions for automatically performing detention operation, and recovering deodorization performance after cooking.SOLUTION: The air treatment apparatus includes: a chamber 4 which includes a suction port 1 for collecting contaminated air generated from a cooked material heated by a heat cooking tool positioned below, an air passage 2 arranged above the suction port, an air blower 3 which is arranged in parallel to the air passage, and blows the contaminated air upward from the air passage, an exhaust air passage 5 which is connected to the upper side of the blow port of the blower, and connected to the outside in the upper direction, a circulation air passage 6 which is connected with an indoor opening facing the indoor in a lateral direction, and a damper 7 for guiding the wind to the exhaust air passage or the circulation air passage a deodorization device positioned between the damper and the indoor opening, and equipped with a deodorizer and a heater and a control circuit 12 which actuates the blower for a first predetermined time after cooking of the heat cooling tool, and heats the heater for a second predetermined time.
