I researched quiet a bit for air conditioners since I was upgrading my old one and I wish I had seen more reviews about this being loud since my old one was very loud and I specifically looked for a quiet one and the reviews said this was. For the price I assumed it would be but it is not, and not due to installation issues either. I have to constantly readjust the filter since that seems to vibrate the most. I only ever have it on F1 or F2 because the F3 setting is way too loud and since this is in my bedroom it wakes me up a lot. Very disappointing for the price.