CO2 and ventilation Question.

[LuciferN]

so i have a 9x10x7ft room or 630sqft. heres the prices and details for a combo carbon scrubber i can get, which comes with (filter,flange,FAN)..

156CFM+filter+flange = 300

350cfm+filter+flange= $430.

I was initially planning on using a few 20oz paintball CO2 canisters. i was just worried that every week im going to be running to get it refilled...

either that or i make my own slow release co2 method.

Personnally I will go with 350 CFM, the room has 630 cubic feet with the 156 CFM fan it will take about 4 minutes to exhaust the whole room (and I'm not taking any restriction, from the filter, in consideration). The 350 CFM will exhaust the room in 1.8 min, way better.

As for the Co2 it will be hard to keep the Co2 at a good level if you don't have any tools to check the ppm in the air it will be hard. Plus your exhaust running all the time will get this Co2 before it can be used by the plants and I think that the 20oz canister will not be big enough to help in this big room...

With a good air flow you should be all right without having to add any Co2.