In 2019, establishment of “management in air conditioner apparatus act” elevated the benefit in “inspection and formulated regulations in power saving of campus’ air conditioner act”. Also, asking each unit and department to make sure the regular purifying and maintenance in air conditioner, and establishing regular maintaining record to keep the efficiency of running. In 2020, formally proceeded mechanism of inspection and detention to fortify the operation in the building’s air conditioner and regulation in maintenance and preservation.