For those dust that cannot be sucked away with a vacuum cleaner, you can use a duster to pat it out of the car.
For example, a chair made of flannel, you can first dust out the dust from the cushion, and then use the vacuum cleaner, which is better.
It should be noted that the force should not be too strong when dusting, otherwise the dusted object will be easily damaged. In addition, when dusting, because there is a large amount of dust flying in the car, the door must be completely opened, and the air conditioner must be turned to the maximum to blow the dust out of the car.
Before using the vacuum cleaner, you can put a layer of stockings on the junction between the front nozzle and the hose. This becomes a very useful filter that can improve the efficiency of dust collection. Maybe you think your seat should be clean, but you can tell by looking at the silk stockings that there is actually a lot of cotton wadding on it.
The benefits of simple filters made of silk stockings do not stop there. Due to the structure of the vacuum cleaner, the sucked air can be discharged from the inside. A silk stocking-type simple filter cooperates with the filter of the vacuum cleaner itself to form a two-stage filter, which can prevent the vacuum cleaner from re-discharging dust into the car at the discharge port. If you still feel unsafe, you can also put a wet paper towel on the discharge port.
In this way, the filter effect will be better and the odor can be prevented.