| 摘要 |
PROBLEM TO BE SOLVED: To perform a cleaning operation matched with actual use against a problem that a dust detection part can not collect all dust and can not stop the operation even when detecting dust of a small diameter that enters a room from the outside and continuing the cleaning operation automatically, in the operation by the dust detection part mounted on an air cleaner.SOLUTION: A control part 9 stops the operation of a fan motor 5 when a detection amount from an odor detection part 8 is lower than a prescribed value and a time when a dust detection part 7 detects only dust particles of a size less than a specified value reaches a fixed time, on the basis of detection signals from the dust detection part 7 and the odor detection part 8, and increases the specified value of the size of particles to be detected by the dust detection part 7 when the dust of the specified value or larger is detected in the dust detection part 7, the operation of the fan motor 5 is restarted, then the state similar to the previous time continues and the operation is stopped. Thus, since detection sensitivity in the dust detection part 7 can be lowered, the effect of being capable of preventing useless operation not matched with practical use can be achieved. |
