The main functions of HVAC, a household central air conditioner, include: heating, ventilation and air conditioning. The most important feature of central air conditioners is the creation of a comfortable indoor air environment, with the fan playing a vital role in an air conditioning system. The advantages of using Airflow external rotor fans for HVAC:

1. Compact structural design;

2. Whole-fan dynamic balanced, stable operation, low noise, small vibration, high reliability;

3. High efficiency, low power consumption;

5. Rear guide vanes available for installation, to further improve aerodynamic efficiency and flow range of the fan;

6. Different blade materials, including cast aluminum, plastic, steel plate, etc., for varied environmental application requirements.