The pressure rise which is the main difference between fans, compressors and blowers can be stated as follows:
ΔP(psig)
Fans 2
Blowers 2-10
Compressors >10
The same difference between a turbocharger and a supercharger really. A turbo/fan can move air rapidly from one place to another (like a cooling fan - cold air moved to replace hot air, or like a...
If you need the high compressed air then you can go to the compressor (It gives the very high compressed air used is sand blasting operations )... If you need the high velocity of air with very high...