Question for those who exhaust after CO2 shutdown

sf_frankie

Well-Known Member
I decided to convert to a sealed room and grabbed one of these burners on Amazon. I am going to run what some call a hybrid sealed setup. I have a small extraction fan that will clear the room air after lights out and maybe 3-4 times during the day to keep things fresh. The exhaust ducting has a damper to help keep things sealed. Do I also need intake (passive or active) as well or am I okay just sucking the air out? Doing this to help with humidity spikes and to clear the room before I head in there.
Thanks
 
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