Genesis Twin Fan High Velocity Reversible AirFlow Window Exhaust Fan with Dual Fans, LED Indicator Lights Adjustable Thermostat & Max Cool Technology, ETL Certified, White (A1WINDOWFAN)

***UPDATE after one month of use*** I stand by all the details in my review below...but just want to add: I could not be happier with this fan. It appears to move more air--with less noise and more speed--than my old work horse Honeywell fan that I was replacing. If I had the choice to repurchase this fan...or my old Honeywell...I would choose this fan.***********************************************This fan replaces my inherited Honeywell dual fan (it was at least 30 years old...probably older). It was powerful...and was made when most fans were still made with metal blades. Consequently, it was very powerful for its size. As far as I'm able to tell fans of this style are no longer made with metal blades. The modern version of this fan appears to have been discontinued. I used my fan mostly to cool my bedroom by setting it for exhaust in the window of another room... with the windows in my bedroom open. It was very effective for this and on all but the hottest nights allowed me to turn my A/C off. Using a fan to draw air in this way requires a fan with a high CFM rating.I looked at a lot of the fans of this style that are being made today. None have all the significant features of my old fan. This fan had most of them...reversible (with the ability to have one fan exhausting with the other drawing), locking expandable side panels to give a good fit (important if you are using for exhaust), and a high cfm capacity. Many of the fans now made don't even list their cfm rating...this one is listed at over 700. (By comparison the new Vornado Transom fan--that many sources are rating as the best window fan--only moves a measly 80 cfm. I have one of these...and I love it for certain things. But it is completely unable to move enough air to cool a room as I describe above.)The main thing this fan doesn't have is the ability--when using for intake--to direct the airflow for each of the fans with rotating grills. I LOVED this feature on my old Honeywell. No fan currently being made--as far as I could discover--has it.I would prefer that it didn't have the bright LED lights. But I can live with this. If I were keeping the fan in my bedroom, this would bother me.In the comments for this...and similar fans...there are a lot of complaints about the "cheap plastic." Fans are plastic now. This will always feel flimsy and insubstantial...particularly in one that is supposed to be light enough to sit in a windowsill. This one feels pretty normal in that regard.The comments about noise level are all over the map. Fans are noisy. I didn't see a decibel rating on this one...but I found this one to be less noisy than most.There are also complaints that it "doesn't cool." Fans don't cool. They move air. This one excels at moving large volumes of air. If you are trying to get cool air in...or hot air out... it does the job well.

As the headline suggests, this is not a quiet fan. however, if you want a fan that does the job and don't mind that it needs to make a noise to do it, then this fan is for you. It works really well and the option to change the direction of the air is great. I have used this to bring cooler air in from outside and to move hot air out from inside. Overall, this is a good fan.

The media could not be loaded. First off, I waited a while to receive the item. It was stated nowhere that this was a US item, I live in the UK. So I had to buy an adapter.Time comes to finally use it, and let me tell you, the sound on this thing is ATROCIOUS. You can barely even hear your own words on the LOWEST setting. The medium and high settings make literally ZERO difference to the speed and sound. What is the point of having them? Let me say, you absolutely cannot use this in a place like a bedroom, it's incredib Thly loud and there is nothing you can do about it. Is it really that hard to have an actual low setting? The video I've provided doesn't justify how loud this thing really is, due to one of the fans being dead.If that wasn't a bad experience already, it only got worse from there. Both of the fans died on me, not even within 10 MINUTES of me testing out the fan. You can see in the video I've provided that one of the fans just die, randomly. I've tried and tried and I cannot get them to come back on. The LEDs still light up, but the fans are completely busted. What a waste of time and money.

Un poco ruidoso pero mueve el aire bien.

This unit is exactly what I needed. Draw in cool air. Blow out hot air. One can even draw in air while the other blows. I used this option often while prepping my bedroom a few hrs before bed. Good speed. Sound helps me sleep. Not obnoxious. I need my room to be very cool/cold in order to sleep. I do not want to use the HVAC throughout my entire living spaces just to cool one room. I have not had any issues. Very easy to place in window and operate. Its basically a boxed frame that holds two fans. I used it every night. I still have it in my window during very cold weather because the air will flow thru the blades without having it on. For me, it is very much worth the purchase.