10
5.4.
Sound characteristics
Power
setting
Air duct
Sound power level (L
WA
)
Octave band, Hz
Total
125
250
500
1000
2000
4000
8000
50%
Suppply
Extract
Outside
Exhaust
70%
Suppply
Extract
Outside
Exhaust
100%
Suppply
Extract
Outside
Exhaust
Measured according to LST EN13141-7.