Key performance parameters for centrifugal fans-such as gas flow rate, pressure, power consumption, efficiency, and impeller rotational speed-must be carefully considered during the model selection process.
The gas flow rate parameter represents the volume of gas the fan can handle per unit of time, while the pressure parameter refers to the internal gas pressure during operation. Efficiency is defined as the ratio of the fan's shaft power to the effective power utilized in handling the gas.
The efficiency of micro-centrifugal fans ranges from only 40% to 60%. Improving efficiency will be a key objective for researchers in the future development of centrifugal fans.

