What is the most important factor in evaluating the quality of a vacuum cleaner?

The suction power of a vacuum cleaner is the core element in evaluating the quality of a product. Greater suction power means better cleaning effect when cleaning deeper or more complex dust-hidden environments, such as cleaning mattresses, car floor mats, and more. When there are some gaps and gaps, if the suction force is small, the fine objects may not be sucked out, and under the same size, the motor speed is higher. It can bring stronger suction!