Air conditioner

An air conditioner comprising:

• an air flow path;
• a cooling unit disposed in the air flow path, the cooling unit being configured to cool air introduced into the air flow path so as to condense vapor contained in the air;
• a humidification unit that humidifies the air, the humidification unit including a storage tank for storing water and a heater for heating water in the storage tank;
• a discharged-water storage unit capable of storing water discharged from the cooling unit and water discharged from the humidification unit;
• a first exhaust pipe connected to the discharged-water storage unit, the first exhaust pipe being configured to discharge water stored in the discharged-water storage unit;
• a second exhaust pipe having one end connected to the storage tank and another end connected to an intermediate portion of the first exhaust pipe, the second exhaust pipe being configured to discharge water from the storage tank to the discharged-water storage unit;
• an exhaust valve disposed midway on the second exhaust pipe;
• and
• an overflow pipe that connects the storage tank and a part of the second exhaust pipe on a downstream side of the exhaust valve.