As the air is polluted and the quality is reduced, the particulate matter, dust or other impurities in the air not only exist in the outdoor air, but also have the same trouble indoors. Air purifier is an effective method to purify the air at present. The air purifier can adsorb, decompose and transform various air pollutants. It can purify and adsorb dust, pollen, peculiar smell, formaldehyde, bacteria, allergens and PM2.5, effectively improving indoor air and improving air cleanliness. Through observation, we found that the air purifier will accumulate dust and be difficult to clean after a period of use, which has a serious impact on the use effect and service life of the product. The water-washed air purifier uses water seamless viscous dust filter. The harmful gases and formaldehyde in the air are easily dissolved in water. The water-washed air purifier degrades harmful substances while gasifying, and will not produce secondary pollution. The appearance design of the washing air purifier is simple and atmospheric, and it adopts super-strong HEPA filter material with high density. The dust collection and deodorization two-in-one filter screen can effectively remove pollutants such as PM2.5 and formaldehyde, with high purification efficiency and long use time. The odor sensor and the pollution indicator above the panel can emit lights of different colors according to the air quality. Different color combinations can meet the needs of different people. The base design can be stable on. The washing air purifier adopts a modular design, with removable ventilation holes on both sides. The unique grid is recognizable, reducing the exposed part of the parting line of the front and rear shell molds, and improving the integrity of the product; the right side of the top is the display screen, and the left side is the disassembled part. The combination of the screen and the screen printing on the disassembled part makes the screen display more ornamental; the internal filter and other components can be directly drawn, fasten the disassembled parts, and the disassembled parts are processed by a fine mold, which is not easy to damage, more durable and convenient for maintenance. The water washing air purifier can not only be used to purify the air but also play a role in humidification. The water washing air purifier can adjust the wind direction from multiple angles to ensure the air quality, and at the same time, it can make the air quality more fresh and moist, and improve the dry air.