is it loud when it runs or does it run quietly?
746611
It's very quiet. It only makes noises when you carry your laptop with your right on the fan.
746612
This unit is much quieter when it is elevated by the extention legs. Otherwise, I find it is noticeably running but not objectionable.
746613
It's not super loud when it runs, but you can definitely hear it. However, when it starts breaking down a few months into use, it becomes REALLY loud.
746614
It's pretty quiet. I wouldn't record webcam videos and stuff with it 'cause it does make background noise, but it's not bad at all. About the same as any box fan. The one thing (that's been mentioned in several reviews) is the USB cable has a tendency to get pushed into the fan blades a little bit, at which point it makes a high-pitched grating sound, but tug on the USB cable gently from the back and that's solved quickly. It is a tad unnerving though.
746615
I find it very quiet, and the noise it does make is subtle and not grating. I have other brands that are much louder and didn't cost that much less; I recommend this one. Note: it's tall - elevated my laptop noticeably, which works well for me in terms of more comfortable using the keyboard (it's the thinnest & flattest laptop I've ever owned), but something to keep in mind.
1263279
It is pretty quiet. It sounds like a quiet fan blowing. Nothing more than that.
689059
I do not find it to be noisy at all...when you plug it in, there is a startup noise similar to a computer starting...that is all. I love this machine!!!
2224863
Is not very loud, sounds like a small air compressor running. I can hear mine run from outside closed garage.
2034752
No it is not loud. You can here it running but acceptable. I have it installed in my basement bar and love it. I only turn it on when I am having company. This unit will require a floor drain or condensate pump. Very happy with the unit. Hope this helps.
1130703
It's not very loud at all, I was surprised how quiet/relaxing the pump is while running at a high speed. I wouldn't recommend running anything at full speed, there is no need for that if you have cats.
974251
No louder than a "normal" fan regardless of load. You can hear it's running but not over the volume of a typical game. It is very good at keeping the processor cool.
473000
It is not particularly noisy. It cycles automatically over a preset timed cycle that the operator sets. We have been very happy with this product..
1595923
Not loud or noisy at all, just the regular treadmill noise. My wife has been using it for a while now and she loves it
1432799
quiet, although i have it mounted in a cabinet. I've never been aware of it.
1122549
I have it in a very small office and the only noise you hear is a small clink noise when it starts and stops. otherwise it is very quiet. alot quieter than my large frige at home.
2048168
It is not whisper quiet. You will know when it is running. I have it outside of the house and when I am indoor with all windows and doors closed, I can hear it. Nothing too crazy, but can be heard.
1159785
It's pretty loud. I run it at night and it acts like white noise so it never bothers me. It does an excellent job though.
1005106
It is a quiet fan, it sounds like a dryer vent when running from the outside.
1407564
You can hear the fan when its running, but I don't think it is loud. I put on music when I was using it and I wasn't bothered by the sound of the fan.
1252007
You cannot hear it run. There is a very silent cooling fan that runs in the back.
2139067
Mine is quiet until it is under load. I use it as an alarm clock to wake the kids for school. Can't use it on weekends until after 9am.