This is a quiet and awesome little fan. Does not make much noise on high. This fan seems blow a lot of air on high. The unit fits my 34.5" window, and does not require the removal of the screen to install. Note that the fan would require the physical removal and flipping to work in exhaust mode (I believe you may need to remove the screen in this instance as the front of the unit protrudes more than the back).
The three fans operate depending on the speed setting. High is all three, medium is the outer two, and low is just the center. Thermostat seems to function, although I keep it on 65 and it stays on throughout the day. Overall great purchase, highly recommended.
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I have had several types and brands of window fans, and they run for days at a time in my apartment on exhaust mode to remove smoke, cooking/frying smells, etc. This fan is by far the smallest in height almost half the size of the other dual fan types.
The pros:
Much smaller in height
Much quieter
On high it delivers better performance than the dual
The cons:
Does not fit as well in my window there were large gaps that I had to cover with tape to get adequate sealing/performance
Unless you run the fan on high all the time ( I do ), one or more fans will not be spinning...(on low only one spins, medium two, high all three), so unless you run it on high, you run the risk of bugs coming in etc/basically have an open window. Not a huge deal because the fan is quiet on high but worth noting
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Alright here is my situation. I live in a 350 sq foot studio on the first floor with a cat. During the summer when it is hot, I can't sleep with my only window (yes just one in the whole apartment) wide open because of safety concerns and my cat likes to climb screens. So, I was using a single little fan I got at target placed in front on 1-2" opening in my window. Needless to say, it got stuffy and warm.
Bring in the Bionaire Thin Triple Window Fan.
First, it shipped like really quick and it wasn't prime eligible (which is a bummer) so I was worried I was going to have to wait awhile, especially since shipping was free (implies ground shipping that is super slow). I placed my order mid day on Monday and it was at my door Thursday afternoon!
Second, it was very easy to install, it was delivered and within 5 minutes it was pumping in fresh air.
Third, my window is actually to tall to technically install it vertically however it was secure enough without being secured on the top that I am going to leave it with the gap.
Fourth, someone mentioned a rubbing sound, my unit faintly rubbed as well at first but it quickly went away. I noticed the rubbing sound (again very minor) is only present when I first turn it on and then it goes away quickly.
Fifth, even on the highest setting this fan hums along nicely will pushing quite a bit of air through.
Sixth, the price is a bit high for a fan but given how perfectly it solves my particular situations problem, I don't care because it was worth it.
Overall, I would recommend it, especially if you are in a similar situation.
Honest reviews on Bionaire Thin Triple Window Fan
I have a couple cheap-o twin window fans that work OK, but are pretty loud. Mounted in the 1940s era double-hung wood windows throughout most of the house, they cause extremely annoying reverberations when run at the high setting, even if I try to dampen the vibrations of the windows in their frames.
I was attracted to the Bionaire Thin Triple Window Fan because the reviews seemed favorable and seemed the closest solution I could find to my idea of making something like this from several quiet computer cooling fans. I sourced one at one of the major big-box retailers in my area, however the one I found has manual wheel controls for fan speed and temperature control, rather than LEDs. But otherwise I believe it's the same fan as in this listing.
Build quality seems decent and the fans are indeed pretty quiet, though not super quiet. Compared to the twin window fans I already have, the Bionaire is probably less than half and maybe 1/4 as loud. Most of the noise seems to be from air passing through the unit and not from the motors. Best part is each fan seem well dampened and the weak vibrations that transfer to the window frame aren't strong enough to cause any reverberations.
The unit I purchased came with an accordion-like sleeve preinstalled along one side that can be pulled out to block the remaining opening in the window. However, my windows are only 23" wide and it was immediately obvious, once out of the box, that the fan was too wide. The instructions state it's designed to fit windows with a minimum 25.5" width (and 8" opening height). I had visited the Bionaire website beforehand, but was unable to get the product pages to display correctly and therefore couldn't find the specifications, which also weren't listed here. At first I was disappointed because the other aspects of the fan looked great. But a bit of tinkering by unscrewing six of the eight screws that hold the fan's housing together, allowed me to pry it open far enough to remove the accordion-sleeve. The resulting width of the fan (as seen in the product listing here without the extension sleeve) is about 23" and fits the window with about a half-inch gap on the side, which I plugged with a small towel.
As for fan speed... it seems OK. There are probably more powerful window fans available, but for an average sized room (that is west facing with three computers that heat it up very quickly on summer afternoons), it creates good enough air circulation with it exhausting air from one of the room's two windows and all three fans running.
Too early to state anything about durability and reliability, but wanted to point out that it could be a tight fit for smaller windows.
Four stars so far. One deducted for no specifications printed on the unit's box. In hindsight it might have been a good thing since I probably wouldn't have bought it if it stated, as the instructions do, that minimum window width is 25.5". As explained, a bit of very easy tinkering got it to fit a 23" window.
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I use this fan in the summer time to cool the house over night. It's very quiet, even on full speed (all three fan blades going), is easy to operate, easy to store (I take it out of the window every morning.) and even looks good with its black finish. The construction quality is excellent and it's very easy to operate without having to move or tip over. It fits fine in the window vertically, but I'd imagine horizontal use would be equally easy. My only complaint is that I wish it had a remote control, especially for the price, but that might be too much to ask.
