Characteristics of a large electronics factory: The soldering workshop is densely populated with relatively fixed personnel, and using traditional central air conditioning consumes high energy. In addition, the smoke caused by soldering in the workshop cannot be eliminated, which has a great impact on the health of workshop employees in the long run. After adopting Rundongfang energy-saving environmental protection air conditioning, the overall temperature of the workshop decreased. In addition, the environmental protection air conditioning continuously sends fresh air to the workshop, discharges indoor odors and smoke, and keeps the overall environment of the workshop clean.