| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of preventing a refrigerant accumulated on a floor surface from being stirred.SOLUTION: A vacuum cleaner includes: an electric motor generating suction air and exhausting it to the outside; an oxygen concentration detecting device for detecting an oxygen concentration of a use environment; a comparison means for comparing the oxygen concentration detected by the oxygen concentration detecting device with a preset threshold value; and a prohibition means for prohibiting operation of the electric motor when the oxygen concentration detected by the oxygen concentration detecting device is below the threshold value. By the configuration, a refrigerant accumulated on a floor surface can be prevented from being stirred. |
