BLACK+DECKER 9" Dual Window Fan with 2 Speed Settings, Twin Fan Heads with Mechanical Dial Control, Removable Legs, For Sliding Windows up to 33” W with Accordion Expanders, BFW9M, White

This double window fan works great. It's heavier made than the others that we've used too. The thing I like the most, and it's trivial but important, is that it's actually labeled which side vents and which draws in air. All of the others didn't. So you guessed, and %50 of the time you were correct..lol.. Oh , and it's quiet. I can highly recommend this window fan.

Works great in slide side window

This has been a godsend this fall. I can’t vouch for the durability since I’ve only had it a month, but it’s quiet and works more powerful than the Hampton Bay one I tried (and returned). I wish it had the knob style switch rather than the tab at the top AND wish it had both in/out modes…which is why I knocked it down a star. However, the air flow is great and I’m satisfied with it

Quiet, low hum, great at pulling in cool night air. Fits nicely in the window. Seems to be well made, but I have only had it for a few weeks.

The description states that it will blow air in or exhaust out so I expected to be able to change the direction of airflow with a switch. Perhaps I should have understood the term "Manually Reversible". This means you take the fan out of the window and turn it around. I decided on this particular fan because it has the Black and Decker name. I figured the brand name would be better quality and I prefer a mechanical switch as opposed to a digital switch and remote control. The only positive I find is that it is relatively quiet. It does not have a molded indentation for a window sash to fit into and so it is only the weight of the sash that keeps it in place. Poor design. Not Worth The Price.

the window fan is Ok to use, the Expanders provide flexibility of different window size. 2speed air speed, it is easy to setup and control. Quality is matching with price, two corner case opened widely, but not affect use.reminder, this fan is not with intake and outtake feature which I need.

We real like the fan . Quite , nice air flow , low noise

Works great. One thing it needs on the exhaust side is a screen. I have long very fine hair, and if I get too close my hair gets sucked into the fan. I'm going to have to rig one up. If something falls in front of the fan my instinct is to pick it up without thinking about my hair getting sucked into the fan. All fans should have a screen on the side that sucks air into the fan blades.