There are solid and gaseous particulate matter, PM2.5, dust, etc. in the air. Air quality directly affects people's quality of life and health. Air pollutants are less likely to be released in relatively enclosed spaces, with persistence and uncertainty. Air purifiers can adsorb, decompose and transform various air pollutants, treat solid and gaseous particles in the air, effectively improve air cleanliness and improve people's living security. After full market research in the early stage of design, the designer found the breakthrough point of design, took nature and freshness as the design concept, determined the general design idea, and carried out innovation from the aspects of appearance design, structural design, color matching, material selection, man-machine operation, etc., and integrated technology and nature well. The appearance design is novel and unique, the shape is small and exquisite, and there are different color combinations. Whether it is simple white, sky blue, Chinese red, vegetation green, each color matching has a unique meaning, and the color tone is lively; plus the small pendant above the purifier, Like a cute elf; the design of the air outlet is divided into gradual change circular holes and rhythmic strip holes, showing different styles; pay attention to details, and the surface process is exquisite, an integrated small foot pad is adopted under the purifier, which not only increases the stability of the purifier placement, but also better protects the contact between the purifier and the placing surface. The structure adopts a sealed design, and the airway design is carefully designed from the aspects of stability and direction control. It is small in size and convenient to carry; simple operation, stable performance, noise reduction, high purification efficiency, simple and convenient disassembly and assembly, which is beneficial Maintenance and cleaning; suitable for different use environments.