Patent ID: 8650890

Claim:
A humidity control system, comprising: a casing having air passages formed therein; two adsorption heat exchangers, which are provided in the air passages of the casing, and support thereon an adsorbent capable of adsorbing moisture in air and desorbing moisture into the air; a compressor; an air discharge fan; an air supply fan; a closed space forming unit for forming each of closed spaces located around each of the adsorption heat exchangers so as to hermetically seal each of the adsorption heat exchangers therein; and an active species generating unit for supplying active species, for decomposing odorous components, into each of the closed spaces, wherein a plurality of open/close dampers are provided in the casing, where the open/close dampers are capable of switching air flow paths by connecting and disconnecting the air passages, located on inlet and outlet sides of the adsorption heat exchangers, to and from each other, the closed space forming unit is formed by the plurality of open/close dampers, where the open/close dampers form the closed spaces around each of the adsorption heat exchangers when closed, the closed spaces are a first heat exchanger chamber and a second heat exchanger chamber, when a command to stop the humidity control system is received from an operation section operated by an user, the compressor, the air discharge fan, and the air supply fan are stopped, and all of the open/close dampers located around the first heat exchanger chamber and the second heat exchanger chamber are closed, whereby each of the first heat exchanger chamber and the second heat exchanger chamber serves as a closed space, and the active species generating unit supplies an active species to each of the closed spaces.