Fan Duct elements Air openings Room

m³/h flow rate		Cross section m2
Total pressure Pa Pa		Speed n/min
Assembly type		RR Radial rearw. T Rotor forw. AM Axial w. diff.

Calculate

	fm	63	125	250	500	1000	2000	4000	8000	Hz
	LW									dB
	DE									dB

Collect