| 摘要 |
PROBLEM TO BE SOLVED: To provide a fan which stabilizes an ion concentration irrespective of a using state of the fan and which can improve reliability and usability. SOLUTION: In the fan having an operating section for controlling a stop and an output of a motor, an ion generator 11 is arranged in front of the base of the fan for generating a negative ion ahead of the base of the fan, the output of the ion generator can be regulated in response to the output of the motor, can increase the generation quantity of the negative ion if an air volume is large, and can decrease the generation quantity of the negative ion if the air volume is small. COPYRIGHT: (C)2004,JPO
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