Need Carbon Filter Help

So i have 2 Gorilla Grow tents in my garage both 5x9 tents and both are running separate inline fans...

I am coming up on the stage of budding (super happy) and this being my second run i need to get a Carbon Filter Setup...................

So basically my question would be should i buy 2 individual carbon filters one for each tent or should i just buy 1
large filter to cover my whole garage as a whole with 1 inline instead of the 2 i would need for the separate split.... Thanks in advance

Hey man. I'm running two 5x5. I have one system for both however when I thought the smell still was there. I actually bought a second and put it outside the tents to be the intake for both. so essentially all the air going through is filtered. You just have to make sure when you buy that the fan and the filters ability to move the air are matched or similar. You don't want a fan that can move 600 cfm and a filter that can only move 200. Anyway hope that helps