Air flow is fine, the only issue for me now is humidity and its effect on charcoal filter.
Scheme of ventin is simple, we have air intake from the pottom of one side of the room and exhaust fans on the top of the other side. oscilating fans blowing from intake ....... stooop, heh i just found the easy way for all people, hope you chek it out.

CO2 and cold air a havier than hot air and will be low down with plants. Cold air fron will cove the whole plantation, so all of the girls will be in almost equal climatic conditions. Odour and hot air is sucked out by fan and forced in to charcoal filter.