When private cars enter the lives of most people, the health problem of the car residence also follows. As the car belongs to a closed space, it is easy to collect dust in the car, and most of the dust is concentrated in the dead corners of the car, it is very inconvenient to clean. At the same time, the existing four-in-one car vacuum cleaner is very large, which not only takes up space and human-computer interaction experience, but also is not very good. In view of this thinking, Nanjing Trojan horse. The biggest feature of this product is that it shares a set of battery modules, which successfully solves the power supply problems of the two products of air inlet and air outlet, and at the same time greatly reduces the production cost. The appearance adopts a minimalist straight tube shape.