Haha yep I’m tha’ man! 
(just kidding, appreciate the advice!)
Yeah that’s pretty similar to the one I’m using currently. Like this exact one below, except mine is 8" not 10"… so 8"x40". https://hydrobuilder.com/grow-room-environment/grow-room-odor-control-air-cleaner-filters/exhaust-filters/carbon-exhaust-filters/can-fan-can-lite-carbon-filter.html
Maybe I just need to double-down then.
Cool, thanks mate! 