Corsair AF 120 Case fans

[xayxa30]

How does one know how to make the fan intake or exhaust? I thought there would be an arrow showing airflow direction but I do not see it. Is there some other trick that people use to determine air flow direction?

 

[Isokolon]

usually: there is the frame/cross bars holding it together on the back side.
it takes air in from the front, exhausts at the back

 

[Mr Kagouris]

The side with the beams holding the fan hub is the one that air comes out of.

 

[Samer1970]

Usually the front is clear of any beams cross, and Air Goes from front to back .

you can also tell by looking at the blades, if they are pointing left thats the front.

 

[xayxa30]

Okay that makes sense.. I think I was making it harder than it was.