Hello all, this is my first post after a long stretch of searching for some insight on CO2 and ventilation. There is a lot of information on the topic of setting up a proper intake and exhaust system (open). But I I'm hoping someone might have some experience with setting up a closed-air system in order to create some stability with CO2 disbursement. The thought takes me from cleaning the air through a carbon filter to exhausting that same air to the air conditioning unit. Is this feasible? In turn, hopefully cleaning the air and keeping CO2 in the system, rather than flushing it out. My concern is that there will still be toxic particles that the carbon filter will not grab, thereby making a mess of the air quality and plants. Hope this question is not too noobus, thanks in advance!