If you have air cooled hoods, I would change this up
The goal is to negate pressure by running 750 in the bottom and pulling 750 from the top. Opening the passives helps as well if your tent balloons or caves.
As far as C02, unless it is a sealed room, I am not sure it will be effective. I am not a C02 guy though so, I don’t want to steer that direction 
Yes I will need to remove as much at as possible 
I’ll run this set up as I measured the room but fortunately I’m 8 ft high sucks but I’m going in anyway @Poseidon
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