O no I understand where you are coming from! That is why I will show you what I'm working on.
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I'm working on a growing room that will be 8'w x 4'd x 8'h that I will split into 3 rooms (bloom/veg/clone), I hope you can see that I have come up with a dialed in way that I'm going to do things I'm just getting the fine tuning down right.
The fans I will be running on the room with 120mm PC fans about 16 of them with light traps fixed to room, and fans inside as well.