Was wondering if this is any good.Or a waste of money.
Are you growing in an enclosed space with no exhaust or intake? if so it can help but if you bring in fresh air and exhaust it is just waste of money you would be pulling co2 out of space
I have fans and carbon filter.On timers.in a 5x5 tent.
I with @Donaldj if you can bring fresh are into room the tents in you won’t need to co2
Unless as he stated your in a 100 % closed grow room
I have a 4 inch passive fresh air intake I can open and close depending on out door temps to provide a little fresh air to grow room I have my tents located in
Also we generate a lot of co2 as humans so spending time with the plants you give off C02
I found it to be a waste of time myself
Also most house unless new construction or with in the last decade are not sealed tight enough allowing plenary of fresh air into space
But it your $ & grow so ultimately it’s your choice
Happy growing brother
Thank you for your time and thoughts.i was thinking same.big waste of money.but doing very good so far. Happy growing brother
