A washer/dryer (1) including a body, a drum arranged inside this body wherein laundry to be washed is emplaced, and a fan that aspirates the humid air generated in the drum during the drying process and a chamber whereto the air aspirated by the fan is delivered, configured as a volute wherein the air can circulate and a thermoelectric module situated in the chamber and having flaps that control the flow rate of the air that flows over the thermoelectric module so that the washer/dryer has high efficiency and decreases the noise generated during the drying cycle.