1. When using the vacuum cleaner, please be careful not to block the suction port, otherwise it will cause the motor to overload and damage the motor. 2. When using the vacuum cleaner, please pay attention to install the dust filter bag to prevent dust from entering the motor room. 3. Please do not use the vacuum cleaner to absorb tiny particles such as cement, gypsum powder, wall powder, etc., otherwise it will cause the dust bag or filter of the vacuum cleaner to be blocked, and the motor to burn out.

　　4. When cleaning the vacuum cleaner, please use a damp cloth with water or neutral detergent, do not use gasoline, banana water, etc., otherwise the shell will crack or fade. 5. Please do not use the vacuum cleaner to absorb detergent, coal, oil, glass, needles, soot, wet dust, sewage, matches and other items. 6. Please do not put the vacuum cleaner too close to fire and other high temperature places.

　　7. Do not use the vacuum cleaner to absorb water and other liquids, and do not rinse the vacuum cleaner with water. 8. When you need to clean or repair the vacuum cleaner and when you are not using the vacuum cleaner, please unplug the power plug and do not pull the power cord. 9. Custom Handheld Vacuum Cleaner After using the vacuum cleaner, the vacuum cleaner and accessories should be wiped clean with a damp cloth, and then air-dried naturally.

　　10. Always check the wear of the brushes, and replace them if they are found to be severely worn. 11. For custom handheld vacuum cleaners, you should always check the various fixed parts of the vacuum cleaner. If they are loose, they should be fastened at any time. 12. The brushes on the vacuum cleaner motor are also prone to wear and tear. Pay attention to sending them for repair and replacement. 13. For custom handheld vacuum cleaners, check the vacuum head and exhaust port frequently to prevent blockages. 14. Customize the handheld vacuum cleaner to protect the hose of the vacuum cleaner, and do not press too hard.