Yeah, that is a bit confusing as I didn't post a photo of the other side of the building.  I don't think I have that photo on this computer.

The intake vent is a different side.  It's got a peaked roof to fit two 48" 20,000 cfm filtered fans side by side.  One is on the north side of the building and one south.  We get breezes from the south so we put the intake vents on the south side and exhaust on the north side.  The photo you're referencing will have two exhaust vents side by side, not intake.