As the air is polluted, the air index drops. 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 air pollutants, treat solid and gaseous particles in the air, purify and adsorb dust, pollen, peculiar smell, formaldehyde, bacteria, PM2.5, etc., and effectively improve indoor air and improve air cleanliness. The designer conducts sufficient market research and analysis in the early stage of design, finds the creative points of product design through a large number of sketches, and repeatedly discusses and deliberates to verify the feasibility of the design and carry out design innovation. The appearance design is novel and unique, and the design is inspired by portable bags. The appearance is cuboid shape, with distinct three-dimensional impression, layering, and very simple; there are two small wheels on the bottom, which are convenient to move; the structure design is compact, small in size, and light in weight., There is a handle design, which is convenient to carry; the plug-in wire adopts a pull-out structure design, so there is no need, it has a high-definition display screen, supports touch screen operation, and can display the air quality index very clearly and intuitively. Ozone air purifier mainly uses ozone to complete sterilization to achieve the effect of purifying air. Under normal circumstances, ozone concentration lower than 0.1PMM can kill harmful bacteria in the air, not only does not cause health threats, but also has health care effects; but ozone concentration higher than 0.1PPM will cause great damage to human health. In the design and production process, the ozone air purifier strictly follows the national requirements to ensure the quality and safety of the product, and to ensure the safety factor and purification effect of the purifier.