PROBLEM TO BE SOLVED: To provide a liquid atomizer and a sauna apparatus using the same that can eliminate piping construction for discharging the liquid that has not been atomized, thereby simplifying construction work.SOLUTION: A liquid atomizer includes a heat exchanger 7 and a fan motor 8 provided in an air channel that connects a suction port 4 and an exhaust port 5, liquid atomizing means 9 provided between the fan motor 8 and the exhaust port 5, and control means 28 for controlling the liquid atomizing means, the heat exchanger 7 and the fan motor 8. Rotation means 13 of the liquid atomizing means 9 includes a rotation shaft 19, and a reverse-conical lifting pipe 22 integrally formed with a plurality of rotation plates 20a and 20b that rotate around the rotation shaft 19 in an axial direction of the rotation shaft 19. The control means controls water supply to the rotation means 13, and the operation of the rotation means 13, the heat exchanger 7 and the fan motor 8, detects a water level by a first thermistor 26, a second thermistor 27, and a third thermistor 33, and opens/closes the feed water valve 17.COPYRIGHT: (C)2015,JPO&INPIT【課題】本発明は、液体微細化装置とそれを用いたサウナ装置に関するもので、微細化できなかった液体の排出のための配管施工を解消し、施工工事を簡単にする。【解決手段】吸気口4と排気口5を結ぶ風路に設けた熱交換器7およびファンモータ8と、このファンモータ8と排気口5間に設けた液体微細化手段9と、この液体微細化手段と熱交換器7およびファンモータ8を制御する制御手段28を備え、液体微細化手段9の回転手段13は、回転軸19と、この回転軸19の軸方向に、回転軸19を中心として回動する複数の回転板20a,20bと一体に形成された、逆円錐状の揚水管22を備え、前記制御手段は、回転手段13への水供給と回転手段13と熱交換器7およびファンモータ8の運転とを制御するとともに、第一のサーミスタ26及び第二のサーミスタ27、第三のサーミスタ33で水位を検知して前記給水弁17を開閉させる。【選択図】図2