Two tents, two fans...how many filters and how to setup?

Hello RIU.

I'm having some trouble with this design.

First of all:
- I want my room to be always closed and to use the wall that goes to the outside to have air exchange in the room where the tents will be. I mean, exchange between outdoors and the room.
- I have and inline 4" fan and a 6" double exhaust fan. I mean, it's like a "T".
- Both the 6" exhaust fan and it's filter are pretty big, oversized for a tent. I guess it can give me some options regarding ducting length and so.

I understand how the design would be without the tents, but adding them adds a piece to the puzzle i am having a hard time dealing with.
I've seen a few design were air intake goes from one tent to the other one.

Based on that, i got to this design.
- I guess that as long as i have negative pressure on both tents, the air flow circuit is doing it's thing.
- Should i be worried about the air quality going to tent 2 after flowing trough tent 1?
- I don't know if the carbon filter for the hoods is needed, but i guess it's ok to prevent dust in that circuit.

What do you guys think about it?

Filters should be sized to the fan used to exhaust.

You don't need the intake carbon filter or the one for the lights.

If you need to filter for bugs/dust, just use:
AmazonSmile: Hydrofarm ACBS6 Bug Fan Exhaust Screen, 6" Intake Shield, Black: Garden & Outdoor

I've done similar. You should expect the air in tent 2 to be warmer and more humid.