I am in the process of building a 3'x11' x8.6' high room (i have an awesome wifey). Yayaya. 3x8 will be utilized for grow space. What i need help with is, currently, i am running a 190cfm 4" extraction from a 3x3 tent with can filter, works great. Will this cfm give my new space adequate extraction the new space is just shy of 300cf. I figure, in reality, im hitting 150cfm with my current set up. Wich would exchange once every 2 minutes in the new space. The new space will have dedicated cooling and i am going to be running 5 auto cobs. (To give an idea of heat output) Im hoping that the high ceiling will pull most of the heat up and allow for easier control of canopy level. And im pulling through and will have a ridged h exhaust with no bends. Any advice would be great. Oh and will that size filter be enough to the cover smell of possibly 10-12 autos in flower???