An air quality management system includes a plurality of air treatment apparatuses mutually associated, and a control unit connected the air treatment apparatuses. The control unit makes setting such that one air treatment apparatus has a running priority. The control unit includes an information collection module that collects at least one of a user parameter, an air quality parameter, and a running parameter of the air treatment apparatuses. The control unit processes information collected by the information collection module and acquires a processing result. The control unit sets a running priority of one of the air treatment apparatuses based on the processing result. The air treatment apparatus that is set so as to have the running priority adjusts its operating state based on the processing result, and simultaneously adjusts an operating state of another of the air treatment apparatuses based on the processing result.