so in my brow bowx i had a passive intake pullin fresh outside air and a 4" axial fan 85 cfm pullin hot exhaust...my room is 4x4x5 so 80 cubic ft. everythings been going great and we are haveing a heat wave for like a week and more to come no matter what i do my box stays at 95 degrees..i have a oscilating fan as well..i moved a fan to pull fresh air in from my intake and it brought it down to 93 but thats still high...im currently vegging with 4 26 watt cfls and 4 40 watt t5s..im at a loss my exchange rate is good but its pullin the outside hot ass air