Characteristics of photo-oxygen catalytic waste gas purifier: 1. Applicable environment for photo-oxidative oxidation: photo-oxidative oxidation is suitable for completely oxidizing and purifying toxic and harmful odor components such as waste gas odor into low-molecular components that are nontoxic and harmless at room temperature, and it is suitable for treating toxic and harmful gases with high concentration (which can be uniformly passed through by pretreatment), large gas volume (which can be treated by combined equipment) and strong molecular structure stability. Second, effective purification: organic waste gas in the air can be directly and completely oxidized into non-toxic and harmless substances through photolytic oxidation, leaving no secondary pollution; third, efficient and energy-saving: photolytic oxidation uses vacuum wave ultraviolet light generated by artificial ultraviolet lamp as energy source to activate photocatalyst and drive oxidation-reduction reaction, and the photocatalyst is not consumed in the reaction process. Using moisture and oxygen on the odor surface of waste gas as oxidants, effectively degrading toxic organic waste gas becomes the biggest one for efficient photocatalytic purification and energy saving. 4. Broad spectrum: Photolytic oxidation is effective for many kinds of organic substances ranging from hydrocarbons to carboxylic acids, even for atomic organic substances such as halogenated hydrocarbons, dyes, nitrogen-containing organic substances and organophosphorus pesticides. As long as a certain reaction time and reaction environment ratio are reached, complete oxidation can be achieved. It can be said that the oxidation target of hydroxyl radicals is almost non-selective and can react with any existing substances. 5. Long service life: Theoretically speaking, since the photolysis oxidation reaction directly participates in oxidation and reduction, there is no loss, and the service life is infinite, so it does not need to be replaced. (Provided by Sennuo Environmental Protection, Botou City)