cloning room design

I have used the tray and dome, but i was wondering could u seal up a room, if your planning to do large scale cloning, put a humidifier and keep the room temperature to whats required, would it work? Basically an oversize dome and tray. would it work? or should i just stick with the tray and dome? thanks.

My first concern with an entire room with that kind of heat and humidity would be mold and mildew. I'm also doubtful you could keep the humidity high enough.

ok thanks