How quiet is it? Can I work during midnight with it?
1476449
its as quiet as any compressor i've ever used. you could probably use it in the room where someone was sleeping without any problem.
1867278
It's not too loud. Certainly much quieter than some of the larger HP units in our neighborhood.
867854
It's quiet I've left it on overnight and had no issues. I couldn't even hear it in my own house
1318336
It is very quiet. As it gets older the air sound gets louder, but my husband uses ours every night while I am sleeping and I don't hear it. Just a swish swish sound. It will not disturb your neighbors, above or below.
1418565
The fan is definitely not loud and is actually pretty quiet, but always runs. I have this in the bedroom behind the TV and definitely put it into sleep before bed because you can hear the fan. It would not bother me when awake even if on the desk next to me. The hard drive is amazingly quiet, possibly in part to the rubber grommet mounts.
593967
It is not completely silent. There is a little noise but it doesn't bother me even when running in bedroom through the night. I am a light sleeper. When it is on in the living room with other ambient noise you don't notice it. We are happy with it.
2233813
Not quiet for sure but probably no noisier than other vacuum cleaners I've had other past 20 years. I definitely would not use it late at night or early morning so as not to disturb apartment neighbors.
777439
I guess it depends on where you are going to use it. By your bed at night, maybe a little noisy, on a screened in back patio, pretty quiet. Overall I would lean towards quiet.
1018530
Not at all! In fact I can't hear it and it is on my night stand when I am sleeping. It is super quiet
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.
1867280
It's not quiet if that's your question; it has run very well for me and usually starts with first or second pull with half choke; if you set the unit 20 feet away from your work area it will be fine...
1047828
The low setting is pretty bright. I wouldn't be able to get to sleep if it was on right next to me.
1575223
Not loud at all. I am a very light sleeper and it hasn't disturbed me yet. Very happy with it.
834695
I don't know about compared to others because it's the only one I've owned, but you can hear it in the other room. I won't use mine while others are still sleeping, but if they are awake, I don't think it's loud enough to be a distraction.
2136266
It's a little loud. U can tell it's running. We use it right outside our bedroom door and it does not keep us awake at night.
872336
it shouldnt be very loud. my mother in law got it to help keep her place cool and she says it worked great. she would have said if had been noisy. the only downside is it burnt out fast from leaving it on all night.
400662
During the day It's fine, not too loud. Sometimes I turn it off at night to sleep, but I don't need to have it on 24 hours. This is a hard question to answer because some might like the white noise, but I'm very sensitive to noise. Sorry I can't be more definitive. TV is OK on low.