I use these fans in our windows to suck in the cool air through the screens. Rather than purchase an expensive whole house fan for a few thousand $$$$, we bought 4 fans and use them in the rooms as needed. They work AWESOME. I put the fans on timers so they turn on and off on our schedule. Also, since they don't have a handle on the top, the fit nicely on windows that slide up and down too.
Product was nice filled window, thin and light got great circulation. But after 6 weeks of continuous use it died. So I checked the fuse tried to replace but could not find nor on line witch the products says to go to web. Now we're hot!
I was completely satisfied with the product.