The treatment of industrial waste gas adopts different absorption methods according to the source of the waste gas and the type of pollutant. In addition to biological deodorization devices, chemical methods can also be used to remove odors for purification purposes. Especially the chemical odor gases emitted from places such as chemical plants, spray painting workshops, and heat treatment workshops not only have irritating odors, but also pose a threat to health when inhaled by the human body.