| 摘要 |
PROBLEM TO BE SOLVED: To provide a circulation aspirator which can inform a user of a reduction in a pressure-reducing capability. SOLUTION: The circulation aspiration comprising a water tank 12 which holds water, a circulation path 14 through which the water held in the water tank 12 can be circulated, a pump 16 which circulates the water in the water tank 12 through the circuit path 14, a pressure-reducing section 18 which causes a negative pressure on the periphery of the circulation path 14, and a suction section 20 which sucks external air using the negative pressure which is generated in the pressure-reducing section 18 is provided with a measuring section 22 which measures the temperature of the water contained in the water tank 12 and a display section 24 which displays the temperature that is measured by means of the measuring section 22. COPYRIGHT: (C)2006,JPO&NCIPI
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