This ultraviolet air sterilizer adopts the indoor circulating air method. It works through a variety of physical filtration means, combined with a high-intensity C-band ultraviolet device, this air purifier can quickly filter the indoor dust particles. Meanwhile, it can directly kill bacteria and viruses, cut off the air transmission route of diseases, reduce indoor air pollution, and improve air quality. The UV air disinfector is exclusively designed for the man-machine coexistence environment development and design. It is remarked as the modern green disinfection product as it can meet the disinfection standard and will not produce harmful substances to the human body.