As your vacuum cleaner gets older, you will experience a lower suction power. There are a few factors that affect a vacuum cleaner’s suction power: - The bag may be too full. If this is the case, you need to change the bag. You should also use bags made by the vacuum’s manufacturer to ensure compatibility. - Your pre-motor filter might be caked up with dirt and dust. This filter prevents debris and dirt from reaching the motor. Check the user guide to see how to clean or replace this pre-motor filter. - There might be a tear in the hose, or an attachment might not fit. This causes air leakage that can affect suction power. - If everything else is in working order, the motor might be the issue. If this is the case, you will need to get it repaired or replaced.