| 摘要 |
<p>PROBLEM TO BE SOLVED: To kill general bacteria, colon bacillus, and Legionella pneumophila by connecting a bacteria filtration layer to a circulating circuit to draw and return bathtub water in a bathtub and forming an antibacterial agent layer storing therein antibacterial agents on the downstream side of the bacteria filtration layer. SOLUTION: A pump 13 is disposed in a circulating circuit 10 to draw bathtub water in a bathtub 1 through a strainer 11 and to deliver the water from a delivery port 12. And a filtration layer 14 which is filled with glass beads, etc., to remove large suspended matters such as hairs, dusts is disposed on the downstream side of the pump 13 and a bacteria filtration layer 15 is formed to remove soap components or organic matters from bathtub water leaving the layer 14. In addition, an antibacterial agent layer 16 is formed to sterilize bacteria in the bathtub water leaving the layer 15. Thus general bacteria, colon bacillus, and Legionella pneumphila can be killed.</p> |
