| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optimum pressure regulating device for taking an air bath utilizing stimulation of the difference in temperature. Ž<P>SOLUTION: The pressure regulating device includes an airtight part which can be air-tightly sealed; a decompression pump which communicates with an exhaust port of the airtight part for reducing the atmospheric pressure within the airtight part, and an excessive decompression preventing device for preventing such excessive decompression that the atmospheric pressure of the airtight part is lower than a predetermined threshold pressure. The pressure regulating device also has a decompression control means for controlling the decompression pump. The decompression control means repeatedly controls the decompression among a decompression state in which the atmospheric pressure is the threshold pressure or higher, a normal pressure state, or a wide range normal pressure state in which the atmospheric pressure is higher than in the decompression state but lower than the normal pressure at least once in a predetermined period of time. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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