As the air is polluted and the air quality is declining, the particulate matter, dust or other impurities in the air not only exist in the outdoor air, but also have the same trouble indoors. The air purifier can play a role in purifying the air. 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. Air purifiers have different technologies and materials, and their functions and adsorption effects are also different. Common air purifiers include filter type, adsorption technology, negative ion technology, catalytic technology, photocatalyst technology, ozone, electrostatic dust collection technology, etc. The plant air purifier is designed with green and fresh, healthy and environmentally friendly. It adopts plant ecological purification technology, uses a number of high-tech purification technologies, nine-fold filtration system, plant circulation purification, and deeply purifies PM2.5, dust, formaldehyde and other harmful substances in the air to provide fresh air for people. The appearance design is novel and unique, with ingenious conception. It adopts a bonsai shape with different oval and square shapes. It is outlined with simple lines. The main tone highlights green, fresh, elegant and simple, showing the beauty of fresh, natural, elegant and noble form. The concave groove built in the middle is used to place plants with high adsorption and high decomposition. Plants are not only natural oxygen bars, it can also play the role of decoration purifier. The overall structural design is convenient to disassemble, and the baffle can be easily opened to add water. Intelligent maintenance technology is adopted. Water only needs to be added at the place where the water is injected. Plants can absorb water by themselves through the built-in device without watering the plants in the plant purifier twice, which is very convenient to use. It can be displayed synchronously through a specific mobile phone APP, real-time monitoring of temperature, humidity and air purification index, and adjusting, ensure the freshness of indoor air; the purifier comes with aromatherapy function, which purifies the air at the same time, there will be a faint fragrance in the air, which can meditate and make people feel comfortable.