Vacuum cleaner is divided into 3 kinds commonly: bucket type vacuum cleaner, horizontal type vacuum cleaner, hand-held type vacuum cleaner.They are used in different places.The vacuum cleaner is generally the use of motor drive impeller high-speed rotation, so that the dust collection room to form a local vacuum.The air pressure difference is formed between the dust collector and the outdoor dust collector, and the dust is inhaled into the dust collector together with the airflow. After filtration, the dust is retained in the dust collector and the clean air is discharged.