The working principle of a home use vacuum cleaner is that the motor of the vacuum cleaner rotates at a high speed and sucks in air from the suction port to generate a certain vacuum in the dust box. The dust enters the filter bag in the dust box through the floor brush, nozzle, handle, hose, and main suction tube, and the dust is retained in the dust filter bag.
The filtered air enters the motor through a layer of the filter. This layer of filter is a protective barrier to prevent the dust bag from being broken and the dust is sucked into the motor. The air entering the motor flows out through the motor. The carbon brushes are constantly worn during the operation of the motor. A filter is added before flowing out of the home use vacuum cleaner.
The finer the filter material of the home use vacuum cleaner, the cleaner the air can be filtered, but the lower the air permeability, which affects the air volume sucked by the motor and reduces the efficiency of the vacuum cleaner. But for users, comfort and cleanliness are the main things.
Generally, the air permeability of home use vacuum cleaners is low, so they are all made into a wave shape to increase the air permeability area. Some of this filter material can be cleaned repeatedly. Any filter material has a "life", that is, the pores of the filter material have been blocked by small particles of dust after long-term use.