Sealed room feeding co2 help!!

So I am almost done creating a sealed room but have some questions that need answers from growers that are experienced in running sealed room and using co2? I built a 18' x10' room using tiled floors with 6" tile up the walls. The walls and ceiling are made of plywood that have been kilz primed caulked on every seem and painted in a very good flat white paint that can be wiped down without wiping paint away. I have a single entry way and was thinking of adding a door to create a room within a room. Any advice on design ideas to keep this room truly air tight ? I want no risk of bugs, mold or any other problems that occur with vented rooms. If you currently run a sealed room I would love to pick your brain.

We ran co2 in a sealed room,but it did not work,because we did not have a controller system.Meaning this,we were running the co2 burner in the sealed room with out means to draw in fresh air exchange.

I see. Does that apply to using co2 tanks and a rain line or is fresh air only needed if your using a generator or burner like you mentioned?

Ok,seal the concrete,caulk the sill plates,make the double chamber,put a bench it the entry chamber,so you can change into a clean jump suit,and put on shoe protectors.there is a filter that looks like a race car air cleaner,put 2 of these in the wall,suck the air out with an 8" inline fan,mount a carbon filter on it if needed

Openears said:

I see. Does that apply to using co2 tanks and a rain line or is fresh air only needed if your using a generator or burner like you mentioned?

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never tried the bottles,maybe someone else can answer that.

So when I put in the mud room I get into the suit and clean booties. I then have to exhaust the air out of that room before entering the main room?

Is that just creating a negative pressure chamber so that when i open the main room the air sucks into the dress room/ mud room?

Sounds to me that you have everything covered. Make sure the walls are covered well in paint. Make sure the entry way seals when shut. GL

Ive got a 5x9 tent that has no positive or negative pressure and it works perfectly. The only think you need to make sure of is that theres no air being pushed into your room and theres no air being pushed out. So a mini split is essential. Or until you get a split I used to run a ac on the out side that goes through the tent. With ac running in my tent I was going through 20 pounds of c02 in three days. Now it lasts about 15. 20 bucks a month for 1500 ppms when lights are on doesnt seem too bad! A "decompression chamber" chamber seems unnecessary haha

You might also need a dehumidifier in there. I have a tank with a ppm controller that is hooked into a humidity/ temp controller with light sensor. My room stay sealed unless my temps or humidity raise above what the mini split or dehumidifier can handle. Then my 8" exhaust / 6" intake turns on. Usually happens after watering for about 10 minutes a day.