Question 1

is this fan reversible (does this fan have intake and exhaust)?

Accepted Answer

physically reversible.
Switch runs through the body and is accessible on both sides.
Not quite centered, sits deeper into window if blowing in, shallower if blowing out.

Awesome fan for windows smaller that the two fan version.
Quiet and lots of flow. Very satisfied with it.

Question 2

How to clean?

Accepted Answer

Try vacuum it while blocking the fan from moving when it disconnected from power or if you handy you can take it apart with a Philips screwdriver like I did.    I have two mounted between doors frames for better room ventilation's.  Good luck!

Question 3

Dimensions? Will fit window size?

Accepted Answer

Approximately 8 inches tall and adjusts from 25 to 37 inches wide.  Is approximately 2 inches thick.

Question 4

Hi, I have a casement window, which opens to 33" w, 46" height at largest. If i am going to install your fan vertically, is your extender can fill all the opens to 46"?

Accepted Answer

I don't know the answer to your question, because the fan failed 2 months in and I disposed of it.  I am very disappointed in the quality of this fan.

Question 5

Height?

Accepted Answer

The fan has the following dimensions - 3.4 (depth/thick)  x 25.5 (width)  x 8 (height) inches. The fan has a pullout section and a couple of plastic fillers that can extend it to 35 (or so) inches wide. You can download a copy of the instruction manual from the Bionaire web site (Newegg would not let me post the link), use the Service & Support Link, which has the official dimensions.

Brand	Bionaire
Model	BWF0522M
Type	Window Fan

Bionaire BWF0522M Thin Window Fan with Comfort Control Thermostat

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Item#: N82E16896796034