| 摘要 |
PROBLEM TO BE SOLVED: To simplify installation work, to return to an original state and to improve drying efficiency. SOLUTION: This device is provided with an existing ventilation fan C for discharging air inside a bathroom, a hot air circulation device D for sucking the air inside the bathroom and supplying hot air into the bathroom and a controller 30 for controlling the hot air circulation device D or both of the existing ventilation fan C and the hot air circulation device D. The hot air circulation device D is installed so as to be attached to the existing ventilation fan C later or independently. |
