The Casio XJ-V100W has one of the louder noise levels (37 decibels) amongst multimedia projectors of this age. The average noise level of multimedia projectors of a similar age and spec to this data projector is 32dB, and the noise levels range from 26dB to 37dB.
We think you might also be interested in some of the other 37dB noise level data projectors currently available including cheaper projectors such as the XJ-V10X (£643.20), or the XJ-V2 (£575.90) both from Casio.
If you would consider a projector with a louder noise level then you might want to look at the Casio XJ-V110W (£658.94) (37dB).
What does "noise level" mean?