| 摘要 |
The invention relates to a cleaning method, and in particular, to a vacuum cleaning apparatus and a vacuum cleaning method thereof. A vacuum cleaning method comprising (a) positioning a dust receiver joined to one end of a vacuum suction device in the vicinity of the object of cleaning, (b) positioning a spray nozzle joined to one end of an air spray system adjacent to the object of cleaning, (c) operating the vacuum suction device, and (d) removing the foreign substances adhered to a surface of the object of cleani ng by adjusting the pneumatic pressure of the air sprayed from the spray nozzle , may efficiently remove foreign substances adhered to the object of cleaning located in a narrow space.
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