Sealed Room Smell Control

Trying to finish our room the next two weeks so we can get the girls out of an overcrowded 4x8 tent and let them 12's commence.

Got a space im sealing up to better handle the heat and cold. What I'm hung up on is odor control. Ive never built a closed loop situation before, always ran negative pressure and scrubbed it on the way out.

Cant do that here or I am defeating the purpose of sealing the room. (Captain Obvious )

How do yall do it? Ive seen "in-room" scrubber mentioned. Seems to me these wouldnt get all the smell like what I'm use to. But then again, if the space is truly sealed there shouldn't be any odors to escape.

I could have a lung room, suppose I need to really, run the party room under negative pressure, dumping in the lung room. Have vents allowing treated air from the lung room to be pulled into the party room. My only issue is the lung room is not insulated and its hotter than he'll in there.

Is my only option to insulate the lung room now? Guess I'm hoping someone has some tricks. Without negative pressure involved, I just dont see how id get control of all the smell.

Thanks in advance.

I'm running sealed room in tent 2m2, left part is where plant is and on the right there is dehumidifier and cooler. Air is sucked from the top left section and flows through a tube outside the box, entering the second section of the box, where the carbon filter is located at the end. I'm currently in week 7 of flowering and I don't smell anything.

sealed room no scrubbing you need to oversize the fan and a real quality filter. whats the size of the room. the amount of air exchanged has to increase vs negative pressure