Through observation, we found that after the air purifier has been used for a long time, there will be dust accumulation and difficult to clean, which has a serious impact on the use effect and service life of the product. And use this as a breakthrough point to carry out design innovation, so as to complete the design of this air purifier that can be flushed with clean water. In order to solve the problem of dust accumulation and difficulty in cleaning after the air purifier has been used for a long time, the designer has conducted sufficient research and analysis, through a large number of sketches, looking for creative points in product design, and repeatedly discussing and deliberating to verify the feasibility of the design, Propose the product solution of "washing air purifier. In terms of product design, the design of the washing air purifier is simple and fashionable in appearance, round and friendly in texture, giving people simplicity and home beauty as a whole, and realizing product differentiation with unique design innovation. The design of the washing air purifier is exquisite and exquisite, and the design is humanized. Reasonable base design makes the product taller and more stable on the desktop at the same time, and increases the uniqueness of the product. Modular design is adopted, both sides are removable ventilation holes, the unique grid is also very recognizable, and the exposed part of the parting line of the front and rear shell molds is reduced, so that the product integrity is stronger. The right side of the top is the display screen, and the left side is the disassembly. The combination of the screen and the screen printing on the disassembly makes the screen display more enjoyable. The internal filter and other components can be directly pumped up, and after being directly cleaned and dried with clean water, the disassembled parts will be fastened. The disassembled parts are processed by fine processing molds, which are not easy to damage, more durable and convenient for maintenance.