Filtering a grow tent with cool tube and external fan

Made an illustration on my ipad to give an idea, but it's a 400cfm fan exhausting the 4x4x7 tent out the room. I was thinking this order (from outside in) EXHAUST OUT DUCT--FAN--DUCT--COOL TUBE--CARBON FILTER. Input pls. Running 400w hps

If there is any leaks in your hood you will have the potential to vent odor bypassing the carbon filter.

Outside in: Duct, hood, blower, filter: will solve that issue

P.S. took balls to post that drawing.

SnapsProvolone said:

P.S. took balls to post that drawing.

Click to expand...

LOL i did it on an ipad with my fingers, im not picasso and that was the only free "brush"

but there are no air leaks in the cool tube i am exhausting it now and the excess suction at the end is top notch

I heard I could just go fan>duct>filter and not ducting the cool tube, just having a fan blow the hot air up

thoughts??