An air conditioner includes an inlet; a suction channel through which air sucked from the inlet flows; a spray unit configured to spray water to be vaporized; a first channel through which first air to be cooled by heat of vaporization of water sprayed from the spray unit flows; a heat exchanger configured to exchange heat between the first air and the air flowing through the suction channel to cool the air flowing through the suction channel; wall body defining the first channel located downstream of the heat exchanger in a flow direction of the first air; and an electric device configured to generate heat with power consumption by the air conditioner. The electric device is thermally connected to the wall body.

A booth includes an air-conditioning indoor unit configured to condition air in a space surrounded by a side wall, an air-conditioning outdoor unit disposed outside one face of the side wall so as to discharge exhaust toward the face and connected to the air-conditioning indoor unit, an atomizing device disposed below the air-conditioning outdoor unit and configured to vaporize condensed water generated in the air-conditioning indoor unit and the air-conditioning outdoor unit, and a blower configured to diffuse water vapor or fog generated from the atomizing device.

An air conditioning system includes: an intake unit configured to take in return air of an indoor space from a ceiling of the indoor space; an outdoor air processing unit configured to supply outdoor air while exhausting the return air taken in via the intake unit to outdoors; an air conditioner configured to supply, as air-conditioning air, mixed air of the return air taken in via the intake unit and the outdoor air supplied by the outdoor air processing unit; and at least one radiation unit disposed in the indoor space in a manner to surround the intake unit, the radiation unit being configured to radiate heat of the air-conditioning air supplied by the air conditioner while discharging the air-conditioning air to the indoor space.

An air conditioning system includes: an intake unit configured to take in return air of an indoor space from a ceiling of the indoor space; an outdoor air processing unit configured to supply outdoor air while exhausting the return air taken in via the intake unit to outdoors; an air conditioner configured to supply, as air-conditioning air, mixed air of the return air taken in via the intake unit and the outdoor air supplied by the outdoor air processing unit; and at least one radiation unit disposed in the indoor space in a manner to surround the intake unit, the radiation unit being configured to radiate heat of the air-conditioning air supplied by the air conditioner while discharging the air-conditioning air to the indoor space.

An air management device may include three independently operated primary impellers 131, 131′, 131″, and drawn-in air is discharged through discharge ports 15′-1, 15′-2, 15′-3 provided in the front plate 15 of the housing 10. Louvers 141, 142, 143 installed downstream of the air flow and discharge ports 15′-1, 15′-2, 15′-3 may be independently opened or closed to provide discharge of the air to the surrounding environment. Further, at least one retractable or pop-up fan may be provided. The air management allows customization of air flow. The housing 10 of the furniture-type air management device may be installed on the floor of the livable space and may have a hexahedron shape that extends from side to side. A bottom inlet 11′ may be formed on the bottom plate 11 of the housing 10 facing the floor of the living space above a predetermined distance. The replaceable filter 300 may be installed to filter the air sucked through the bottom inlet 11′, and may be drawn in and out of the housing 10. A plurality of passage openings 302 may be formed in a filter frame 301, and filters 320, 330, and 340 are stacked over the passage openings 302.

An air management device may include three independently operated primary impellers 131, 131′, 131″, and drawn-in air is discharged through discharge ports 15′-1, 15′-2, 15′-3 provided in the front plate 15 of the housing 10. Louvers 141, 142, 143 installed downstream of the air flow and discharge ports 15′-1, 15′-2, 15′-3 may be independently opened or closed to provide discharge of the air to the surrounding environment. Further, at least one retractable or pop-up fan may be provided. The air management allows customization of air flow. The housing 10 of the furniture-type air management device may be installed on the floor of the livable space and may have a hexahedron shape that extends from side to side. A bottom inlet 11′ may be formed on the bottom plate 11 of the housing 10 facing the floor of the living space above a predetermined distance. The replaceable filter 300 may be installed to filter the air sucked through the bottom inlet 11′, and may be drawn in and out of the housing 10. A plurality of passage openings 302 may be formed in a filter frame 301, and filters 320, 330, and 340 are stacked over the passage openings 302.

An air conditioner of the disclosure includes a compressor; an indoor heat exchanger temperature sensor configured to sense an indoor heat exchanger temperature; an indoor humidity sensor configured to sense indoor humidity; and a controller configured to calculate a dew point temperature using the humidity value detected by the indoor humidity sensor and an indoor set temperature, and control a frequency of the compressor based on the calculated dew point temperature and the indoor heat exchanger temperature.

An air conditioner of the disclosure includes a compressor; an indoor heat exchanger temperature sensor configured to sense an indoor heat exchanger temperature; an indoor humidity sensor configured to sense indoor humidity; and a controller configured to calculate a dew point temperature using the humidity value detected by the indoor humidity sensor and an indoor set temperature, and control a frequency of the compressor based on the calculated dew point temperature and the indoor heat exchanger temperature.

An air conditioning system includes: an intake unit configured to take in return air of an indoor space from a ceiling of the indoor space; an outdoor air processing unit configured to supply outdoor air while exhausting the return air taken in via the intake unit to outdoors; an air conditioner configured to supply, as air-conditioning air, mixed air of the return air taken in via the intake unit and the outdoor air supplied by the outdoor air processing unit; and at least one radiation unit disposed in the indoor space in a manner to surround the intake unit, the radiation unit being configured to radiate heat of the air-conditioning air supplied by the air conditioner while discharging the air-conditioning air to the indoor space.

An air conditioning system includes: an intake unit configured to take in return air of an indoor space from a ceiling of the indoor space; an outdoor air processing unit configured to supply outdoor air while exhausting the return air taken in via the intake unit to outdoors; an air conditioner configured to supply, as air-conditioning air, mixed air of the return air taken in via the intake unit and the outdoor air supplied by the outdoor air processing unit; and at least one radiation unit disposed in the indoor space in a manner to surround the intake unit, the radiation unit being configured to radiate heat of the air-conditioning air supplied by the air conditioner while discharging the air-conditioning air to the indoor space.