The average noise level of projectors of this age and type is 36dB. At only 33 decibels, the Acer H6520 has a quite quiet noise level compared to most of the other comparable spec multimedia projectors that have been available for around the same time as this projector.
We compared all the other 33dB noise level projectors to this projector and we think because of it's better review score, the Acer K335 (£609.97), and the Benq W1400 (£599.95) is also worth considering.
Projectors with a louder noise level that might be worth considering include the Optoma X304M (£599.65) (33dB).
What does "noise level" mean?