I work in a detention facility, how can I calculate the occupancy of a room like our intake receiving holding tank. How many people can I have in our holding tank during the booking process. Our walls are cement block and they are ballooned to the roof deck with rock wool chinking. The ceiling of the room is an acoustical lay-in ceiling (fire resistant) with sprinkler heads. We have one room for the males and another separate room for the females each room has only one way in and out and has only 1 handicap bathroom with 1 sink and 1 toilet. The intake holding rooms are monitored 24 hrs a day 7 days a week all year long as well as camera's recording.