| 摘要 |
PROBLEM TO BE SOLVED: To provide such a bathtub that does not require a person to enter a hot water tub but enter a cocoon tub. SOLUTION: From such cocoon 5 that is positioned under the body, hot or cool wind and/or infrared ray is radiated to it to provide the body with a variety of physical effects and powers including cocoon's finger-pressure effect of rolling, hot-air effect by hot wind to take kink out of a muscle to make it more flexible, and its minus ion effect that the cocoon generates and provides it to the body.
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