Across all the data projectors of a comparable spec and age to this projector the noise levels range from 26dB to 40dB. At 36 decibels, the Benq MX768 has a fairly loud noise level compared to most of the other multimedia projectors of this spec and age.
We think you might also be interested in some of the other 36dB noise level projectors currently available including cheaper multimedia projectors such as the Benq MW843 (£860.59).
If you don't mind having a louder noise level then you might want to look at the Benq MX822ST (£871.34) (40dB and cheaper).
What does "noise level" mean?