Help with choosing carbon filter and fan!

Hello all!

I am trying to figure out what fan i should use with this grow box: http://www.hailmaryjane.com/build-a-stealth-grow-box-for-less-than-150/

I will be this filter: https://www.rollitup.org/do-yourself/101248-best-diy-ez-walmart-carbon.html

What fan should i use and is this filter big enough for those two compartments?

how stealthy does it need to be?

If youre thinking about PC fans you should check out "Noctua", pretty impressive figures considering they're PC fans.
Either way remember that you need a fan that is good at 'sucking' rather than blowing, so if PC fans are your preferred choice, don't blindly follow the cfm rating, make sure you check the pressure rating (sorry i cant remember the term/abbreviation or whatever you want to call it right now, but it will likely in the fan specs somewhere).

Hope this helps.
Zip