Air purification apparatus which maximizes treatment efficiency and method the same

PURPOSE: An apparatus for purifying air with maximized treatment efficiency and a method thereof are provided to increase efficiency for removing all kinds of bad smell materials by combining an oxidation process and a chemical liquid cleaning process. CONSTITUTION: A method for purifying air with the maximized treatment efficiency includes the following steps of: removing bad smell materials removable by oxidation and degradation in a rapid oxidation device(S110); cleaning the bad smell materials with acid cleaning liquid in an acid cleaning room(S120); and removing the removable bad smell materials and remaining acid cleaning liquid with alkali cleaning liquid(S130). An oxidation process is formed by spraying chlorine dioxide liquid inside the rapid oxidation device.