Specialized air conditioning equipment used in laboratories and testing facilities of manufacturing R&D and quality control departments. Includes constant temperature and humidity chambers, clean booths, local exhaust systems, laboratory air conditioners, temperature and humidity control systems, draft chamber exhaust fans, and laboratory ventilation fans. Designed for strict control of temperature, humidity, and cleanliness in chemical experiments, material testing, and precision measurements. Unlike general factory air conditioning, these systems feature specialized specifications for precise environmental control and safety assurance in experimental settings. Equipped with hazardous gas exhaust, dust removal, and high-precision temperature and humidity control functions to enhance research data reliability and ensure worker safety.