Honestly I thought I had this figured out, but now I have confused myself so much i dont even know what to ask, so bear with me. My room is about 10x8x8. I will be using an 8 inch hyper fan for my exhaust vented out a basement window. So, my question is passive or forced intake? And the complicated part for me is, if passive, how do i maintain negative pressure and no light leaks when my exhaust is not running? I am leaning towards forced, but then it confuses me on the technical side of things being how much air im putting out vs pulling in. I have two spare 4 inch can fans that i can use for two forced intakes. And say if thats what i go with, two 4 inch forced intakes, how do i setup so that when my exhaust is on, my intakes are on and vice versa. Sorry if the question is all over the place, my mind is too!