To provide a treatment apparatus for odor or the like, which is usable in a state of being put on a bed or having a suction/exhaust fan attached integrally with a box body.

The apparatus includes the box body 2 having a bottom part narrower than a ceiling part, an opening part 3 of the box body 2, a suction outlet 4 provided in the upper part on the inner side of a side wall of the box body 2, an odor guide part 5 guiding odor downward from the suction outlet 4 and integrally provided with the box body 2 outside the box body 2, and the suction/exhaust fan 7 provided below the odor guide part 5.