The photo-oxygen purifier is a kind of equipment which utilizes ultraviolet ray and ozone to catalyze the oxidation of harmful substances. It uses photocatalyst technology, can effectively remove all kinds of harmful gases, such as formaldehyde, benzene, ammonia and so on, but also can remove bacteria, viruses and other microorganisms, make the air more fresh. Photocatalytic oxidation equipment, also known as UV photooxidation catalytic oxidation equipment. A new type of environment-friendly organic waste gas treatment device is made by using ultraviolet light as energy source and loading catalyst in quartz tube, which has the advantages of high purification efficiency, low energy consumption and no pollution.