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.
grow room length in feet
grow room width in feet
grow room height in feet
to add in PPM (Parts Per Million)
meter setting or generator size in CFH
(Cubic Feet per Hour)
of CO2 required
* The air already has about 300 PPM
so you only need to add
1200 PPM more to get the optimum level of