| 摘要 |
PROBLEM TO BE SOLVED: To provide a bathtub apparatus dissolving hydrogen gas in a bathtub while retaining the concentration of hydrogen gas in the bathroom to such a level as causing no risk of explosion. SOLUTION: This hydrogen gas bubble bathtub apparatus is provided with: a hydrogen gas supply device 1 supplying hydrogen gas to the bathtub 8; a first hydrogen gas container 2; a second hydrogen gas container 3 filled with hydrogen gas to be supplied to the bathtub at an amount enough for a single bathing; a first hydrogen gas supply pipe 4, or a pipe for supplying the hydrogen gas from the first hydrogen gas container to the second hydrogen gas container and having a solenoid valve 5 in a pipe line; and a second hydrogen gas supply pipe 6, or a pipe for supplying the hydrogen gas to be supplied to the bathtub by the amount for a single bathing during bathing from the first hydrogen gas container to the second hydrogen gas container. Only the hydrogen gas supplied to the second hydrogen gas container is supplied to the bathtub inside by the hydrogen gas supply means and dissolved in the bathwater in the bathtub and the concentration of the hydrogen gas in the bathtub is adjusted to 4% or less. COPYRIGHT: (C)2008,JPO&INPIT
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