| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas purification system efficiently collecting impurities in a wide range to purify air. SOLUTION: The gas purification system includes: a cleaning filter 22 for collecting impurities included in flowing gas; circulators 24 arranged in positions separated from the cleaning filter 22 and making the gas flow; and a dust sensor 25 for sensing impurities in the gas. The gas purification system further includes a control means 26 for performing control to change the wind direction, air quantity and operating time etc. of the circulators 24, in accordance with the amount of the impurities sensed by the dust sensor 25. Impurities floating in a position separated from the cleaning filter 22 can be also guided to a position in the vicinity of the cleaning filter 22, and air can be purified by efficiently collecting the impurities in the wide range. COPYRIGHT: (C)2010,JPO&INPIT
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