With a noise level of only 33 decibels, the IN8606HD has a fairly quiet noise level compared to most of the other 10000:1 contrast ratio projectors that have been available for around the same time as this projector. The average noise level of data projectors of a comparable age and type to this data projector is 36dB, and the noise levels range from 28dB to 49dB.
We think you might also be interested in some of the alternative 33dB noise level multimedia projectors currently available including the Acer K335 (£609.97), or the Benq W1400 (£599.95) which both of have better reviews.
Alternative data projectors with a louder noise level that you might want to look at include the Optoma X304M (£570.97) (33dB).
What does "noise level" mean?