The air conditioning system can employ an air-floating host, specifically an air flotation centrifuge, which is characterized by its high efficiency, energy savings, and stable operation. Using air-floating oil-free bearing technology, efficient heat transfer technology, and load stepless frequency conversion regulation technology, this system can reduce energy consumption by over 50% in air conditioning operations. The purification air conditioning system employs a combination of MAU (Make-Up Air handling unit for separate thermal and humidity control processing of fresh air), DCC (Dry Coil for cooling recirculated air), and FFU (Fan Filter Unit for providing circulation power and efficient filtration). This solution effectively mitigates the issue of "counteraction of cooling and heating," thereby reducing the complexity and cost of system installation while ensuring the cleanliness, temperature, and humidity requirements of the controlled environment.