Air conditioning device

The purpose of the present invention is to provide a compact air conditioning device. This air conditioning device (10) regulates the temperature and humidity of air introduced therein. The air conditioning device (10) is provided with: a cooler (34) for cooling air introduced into the air conditioner (10), thereby condensing moisture contained in the air; a heater (42, 44) for heating air; and a humidifier (52) for humidifying air. In a plan view of the air conditioning device (10), at least a part of the humidifier (52) overlaps at least a part of the cooler (34). The heater (42, 44) includes a first heater (42) and a second heater (44). In a plan view, at least a part of the first heater (42) and at least a part of the second heater (44) each overlap at least a part of the cooler (34). When viewed in the direction in which air is introduced into the air conditioning device (10), at least a part of the humidifier (52) overlaps at least a part of the heater (42, 44).