FEIS installed smart environmental system on the online exhaust monitoring system for the natural gas boilers. Any indicators that exceed the limit would prompt the system to send text messages to designated personnel. The protocol ensures that all equipment functions properly. Meanwhile, a designated unit conducts daily inspection to examine whether all air pollutants are under regulatory limits. SHEF personnel also examines the emission of VOC as well as testing instruments at the emission source. The data is kept as references for management purposes. All units are responsible for making improvements when anomalies occur, and conducting weekly odor testing to ensure that all air pollution indicators are within the safety range.