The vacuum cleaner operates on the basis of a high-speed motor that creates a vacuum in the dust box by drawing air through the suction port. The air is then filtered through the dust filter bag and enters the motor via a protective filter layer. The protective filter layer serves as a barrier to prevent the dust bag from tearing and dust particles from entering the motor. The air that flows through the motor is then filtered again before being expelled from the vacuum cleaner. This filtration process is crucial to prevent the motor from incurring any damage or wear and tear.
The primary concern for users of vacuum cleaners is comfort and cleanliness. This is directly impacted by the filter material used. While finer filters can effectively remove more particles from the air, they also have poorer air permeability. This affects the amount of air that can be sucked in by the motor, as well as the overall efficiency of the machine. Ultimately, finding a balance between filter fineness and air flow is crucial in providing a comfortable and hygienic cleaning experience.
To overcome the low air permeability of this filter material, it is designed in a wave shape to increase the surface area for better air flow. Additionally, some of this filter material can be washed many times before it loses its filtering ability. However, every filter material has a limited lifespan, and over time, the pores of the filter media become clogged with tiny particles of dust, rendering it ineffective.
To ensure optimum hygiene, convenience, and easy disposal, paper dust bags are the most suitable choice. When cloth filter bags are washed and cleaned, the fibers tend to harden, which in turn, affects the filter and ventilation effect. On the other hand, although the SMS three-layer composite filter material is an option that can be washed, it comes with slightly lower air permeability, which means its filtering effect may be compromised.