Calculate how much
CO2 will be needed to fill a grow room to the optimum level. It will also determine how
long it will take to fill at the given rate.
Usually you would want to refill
just after an exhaust cycle or every 3 hours.
* The air
already has about 300 PPM so you only need to add 1200 PPM more to get the optimum level of
1500 PPM.