Im Building a cage thats 144 cubic feet,(8x4x4.5), On one end of it i have a large vent on the other i was thinking of putting in a fan sucking air out of the cage, rather than through it, the question is how powerful of a fan do you think i need, a computer fan is usually around 25 CFM (cubic feet/minute) i have read, do you think that would be enough or should i be aiming to rotate the entire air mass at least once a minute or what? you tell me. Thanks
-----
CHONG188