Exhaust system question...design

I'm hoping if I link this in here that I'll get more advice from the regulars here.

http://forum.grasscity.com/grow-room-design-setup/530972-questions-exhaust-grow-room.html

I apologize if this in the wrong place mods...but I've scoured the internets for answers...and almost none of them were answered.

Thanks in advance.

 

Bump.

Thread is getting interesting and dripping with info if anybody cares.