Enterprises actively innovate, through the introduction of international leading technology, in-depth independent research and development, forming a unique CGCE disinfection and purification technology; The primary efficiency of particulate matter filtration is 95% and the qualified rate of microorganisms is less than 5% in the hospital specialized air filtration system developed by Chen Gong Medical. The virus killing rate reached 99.99%. Professional services in large public places, high-end commercial spaces and medical and health systems.