PPFDaddy

<span class="link_user">@PPFDaddy</span>, yeah it depends a bit on the setup, but in general youre right =) as long as the exhaust fan istn running full blast all the time, co2 from bags isnt just instantly thrown out. what really matters is the tent volume and airflow balance. in smaller tents you usually get away with one bag, in larger ones two, placed high and with good circilation. i usual try to set it up like my inline fans can blast the co2 right over the plants :blush: yout wont reach sealed room levels or the same result as if you use a bootle system, but it gives a masurable uplift-especially if temperatur, humidity and vpd are on point.

<span class="link_user">@PPFDaddy</span>, thanks alot :blush::blush::pray: your plants look amazing as well :heart_eyes: yes, i definitely noticed that with the bags you can push a little bit harder. in this run its unfortunately not so visible bacause of a few issues i had, but in my summer run i had very good results with it. regarding the fan, i keep on a low base setting most of the time and my controller only ramps it up when needed =) i mainly try to steer everything by temperature, humidity and the resulting VPD. if you get this on point it works well with the bags.

<span class="link_user">@RabbitHole</span>, Thanks, I really appreciate it. So, inside the grow box, even if the extraction fan works, it still shouldn&#039;t &quot;throw out&quot; all the CO2, right?