PROBLEM TO BE SOLVED: To use radon for prevention of disease by sealing radon ore fine powder into a storage body and allowing a bather to inhale ionized radon ore fine powder from a nose and a mouth into the body just like a tunnel thermotherapy using radon in Austria.;SOLUTION: Radon ore fine powder 3, which is sealed in a radon storage body 4 having air permeability, is disposed in this sauna bath device near a high-temperature gas outlet to make a condition of easily generating negative ions, so that the bather can inhale the negative ions generated therefrom.;COPYRIGHT: (C)2009,JPO&INPIT
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