Wow,
A night-club with REAL ventilation!
This is ground-breaking.
Just make sure that the ventilation system doesn't cause a fire started in another part of the building to spread.
You need to prove to a Fire Marshall or the like to make sure that what you install is not going to "link" fire compartments, especially with an occupancy rating of 3000 people, some of whom may have taken illict drugs and may not be able to evacuate like the other drunken ones.
This is NOT a wind-up, I have been there before as a Fire Officer.
