Sharper ImageProfile Window Fan with 3 Speeds, Reversible Exhaust Mode, Weather Resistant, Black

This product is for when it is a little cool outside. It's wonderful for when it rains and you don't want to close all your windows. But definitely does not move the air around enough to Make a huge difference. It all depends on what you want to use it for. I would recommend it for the fall. And remember for the days that it's hot out and it rains and you don't want to close all your windows this is a perfect solution

I like the look of the fan itself. It doesn’t blow very hard but looks good until you stick the weird foam blocks that HOPEFULLY fit perfect. 30 seconds to install but not too trusting that the foam blocks won’t blow away. I’m sure they could have design some plastic shields like every other window fan I’ve ever used.If you want a slim deaign that doesn’t take up the whole view this is great. If you like solid designs (like me) the foam blocks won’t suffice and the strength of the fans is so-so.$40-50 maybe. $90? I think I’ll return it.

if you compare this one with the vornado transom you will find this one slightly under power

I love this so much, I just ordered a second one for my son’s room.It’s been in my Amazon basket for close to six months. I finally decided to make the order, hoping it could just sit in the window opening without all the hassle of installing the sealer/spacer blocks. It does just that, and this also allows for quick/easy removal in the case of heavy wind/rain storms.It locks in the window tracks just enough to keep it snug. Because of the foam pieces that are already assembled on the unit: the right side somewhat locks behind the window frame and the left side locks in front of the sliding window. We also have a screen to block bugs, so no other need to use the blocks and it’s easy to remove.I’m also finding that the exhaust feature actually pulls the inside temperature down, so two benefits to that. Not expecting to need to fan feature too often.

This fan was purchased to be able to move air to and from one room to another. While it could move a higher rate of cubic feet per minute, but the low profile and five directional fan is a plus. Not real crazy about the foam blocks used to make up the difference between the size of the fan and the window opening. a little pricey but overall satisfied with this purchase.