Ciborowski and Pluemer (1991) describe the relationship between fans and acoustical effects for a make-up air system in a California semiconductor facility.
While the plug fan worked very well to provide low energy use in the recirculation system, the high system pressures encountered in make-up air systems shift the ideal selection to vane axial fans. This is due to the fact that both types of fans now require [noise] attenuation to meet the building acoustical requirements and the energy use is only dependent on fan efficiency.
