The factory workshop has a large area and a large number of personnel, and the indoor air environment is very poor, which leads to poor work efficiency of employees and seriously affects their physical health. In order to improve the workshop environment and provide employees with a comfortable and healthy working environment, the company searched online and found 48 Rundongfang environmental protection air conditioners designed and installed by professional technicians. After normal operation, it perfectly solved the problems of poor air circulation and high temperature and stuffiness in the workshop.