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aha...volumne of active growing space.....so its not the size of tent,but the active growing area.i often wondered,but now i read active growing area.if ya had 13 feet ceiling and growing in small pots,would fluff the numbers up completely.is active growing area the amount of space the plants take up ? is it from the light down ? it reads like its not tent/room size.
your cfm/h increase as plants grow im sure,or is the figure we take as the maximum size/area the plants will take up ?
back left lookin nice.
keep er lit
I think if you're using a tent, the it is the volume of the tent.
It's space/volume e.g. m3 / cubic feet, not area, e.g. m2 / sq ft.
So for example, if your tent is 4' x 4' x 7' = 1.2m x 1.2m x 2.1m --> 112 cb ft = 3 m3,
then 8900 cb ft / hr = 240 m3/hr required.