PROBLEM TO BE SOLVED: To provide a mist device for a bathroom in which a water supply solenoid valve can be smoothly opened even when water staying between a water stop valve and the water supply solenoid valve inside a water supply circuit for mist is heated by performing a freeze preventing operation.SOLUTION: The mist device for a bathroom includes a liquid-liquid heat exchanger 10 and a mist atomization part 6, and the water stop valve 8 and the water supply solenoid valve 13 are interposed on the upstream side of the liquid-liquid heat exchanger 10 of the water supply circuit 9 for mist. In a state in which water is not distributed to the water supply circuit 9 for mist, when an atmospheric temperature near the water supply solenoid valve 13 reaches a prescribed temperature or higher, the water supply solenoid valve 13 is opened to reduce a pressure difference between the upstream side and the downstream side of the water supply solenoid valve 13.COPYRIGHT: (C)2013,JPO&INPIT【課題】凍結予防運転を行うことにより、ミスト用給水回路内の止水弁と給水電磁弁との間に滞留していた水が加熱された場合でも、給水電磁弁を円滑に開弁可能な浴室用ミスト装置を提供する。【解決手段】液々熱交換器10と、ミスト噴霧部6とを備え、ミスト用給水回路9の液々熱交換器10の上流側には、止水弁8と、給水電磁弁13とが介設されている。ミスト用給水回路9に水が流通していない状態で、給水電磁弁13近傍の雰囲気温度が所定温度以上になると、給水電磁弁13を開弁して、給水電磁弁13の上流側と下流側との圧力差を低減する。【選択図】図1