Why can't the Mijia Vacuum Cleaner 4 Pro completely remove dust from the edges?

If the Mijia Vacuum Cleaner 4 Pro cannot completely remove dust from the edges, please refer to the following aspects:
1. This is a common physical limitation of vacuum cleaners and is not a product defect. The all-flooring dust-revealing brush bar of the Mijia Vacuum Cleaner 4 Pro could not fully fit against walls or the bottoms of furniture, leaving some blind spots.
2. In addition, suction is strongest at the center of the inlet while airflow is weaker at the edges, so dust can remain in corners.
3. To improve cleaning results, try cleaning from multiple angles or use the 2-in-1 crevice brush for more precise edge and gap cleaning.
4. Regularly checking and cleaning the brush bar, filter, and dust compartment can also help maintain optimal suction performance.