Conventionally, controlling humidity required a large amount of energy for reheating. For this reason, Daikin developed an air conditioning system with an individually treatment for latent and sensible heat, and this significantly reduced the air conditioner’s work by removing latent heat. Using the heat pump as heat source, DESICA employs a heat pump desiccant method to efficiently adsorb and release moisture into the air. Because humidification and dehumidification are performed without supply and drain piping, this revolutionary system saves installation piping and the owner does not need to care for water quality.