| 摘要 |
PROBLEM TO BE SOLVED: To avoid ill effect of a mattress and improve a health condition with the matress by using INOUE ores and FUTAMATA ores in the mattress for improvement. SOLUTION: Powder 15 of natural radioactive material is dispersed in a resin foam as a mat material 10 constituting a mattress A. Deodorizing, antibacterial, far-infrared and hot-bath effects possessed by the natural radioactive material are provided for a bed to be kept always sanitary, improving a health condition.
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