How "silent" is it? Isn't silent an absolute term? Is this thing super quiet or not?
1423370
I only use ball bearing fans in our computer business. The ones we buy are quiet, yet have excellent air flow, with a low decibel rating. With the new processors out today, it is imperative to have good air flow but quiet fans that will are not loud. This fan is only a 19 bd rating which is very quiet.
1423371
This fan is used as a rear case exhaust fan. My opinion, it is super quiet.
1423372
No fan is absolute silent. This one is pretty quiet for the price range. If you want silent then you have to pay up. For around $10 you can't go wrong with this. It's very smooth sounding.
1423373
I installed this on mine and took it right back out because it was too loud
568790
Yes device is super silent. No sound from it. Not sure about 24/7 because I never did. Maximum time I had left it on continously was 14hrs.
1986307
Very subjective, but I'd say it's closer to the "virtually silent" end rather than "really noisy."It's not loud at all.
179211
It's very quiet. It's not very big so it doesn't click or move. Consider it "Stealth"
1092968
It is not silent. It makes a noticeable fluttering sound as it operates. But it does work well.
1263279
It is pretty quiet. It sounds like a quiet fan blowing. Nothing more than that.
771436
It's dead silent. I have never heard any noise from it. I have two of them. Same result. Hope this helps.
6319
It is not 100% silent of course but also not noisy at all I bought it for the kids room and they sleep through the night without any trouble. I do not have any complaints about this product!!
361649
It's more like a very small fan. I'd say it is relatively quiet. It's not a rattling sound or anything. I usually use mine at night so it's ready by morning.
1719777
Yeah, its pretty quiet. Mine's especially quiet lately, I really should get on it again. :)But to answer your question, I don't think it would be an irritant to the people below.
1912200
It isn't silent, but by no means would I describe it as noisy. Just a low hum. Have it in my small bedroom and no problem...and I don't like noise. Energy wise the only time my bill goes up is during air conditioning weather. I live in NY. I am going to buy another one for my other bedroom I like it that much.
1158238
Yes very quietly ... A little click when it shuts off. You can't hear any noise when it's running .
1073368
It's fairly quiet, but there is a low hum. If you need total silence this will not do for you. However, this is the quietest battery-operated fan that I found.
1401868
I can't imagine a silent room fan that you couldn't hear at all. There will always be noise. This fan is acceptably quiet in my judgement. I have had guests comment on it's low noise and ask where i got it.
1346504
It is so quiet you really can't hear it. Don't let that keep you from buying it though. It is an awesome machine.
1392350
In my opinion it is very quiet. I was surprised by how much air such a quiet fan could move.
387176
No really quiet or loud.... If you want power it makes noise, but less than a vacuum cleaner !!!