Try making a passive intake with the exhaust fan pulling air out and pushing it through a carbon filter. Its super easy to make an effective one if you search the forums. Looking at your grow cab, Im estimating around 200 cfms are needed to keep the air exchange rate of 5 mins or so.
.What about oscillating fan,it blows directly on the plant and my plant is dancing at the moment,really dancing,can it be bad for the plant?
Peace
If its blowing too hard just turn the fan down or move it back. The wind is good but not so much that its pulling it out of the dirt.
Well its great to read your journal because im planning to make a cfl grow aswell 60x60x120 but my problem is that im thinking. What is more usefull 6x 24w (1500 lumens each) or a 150w cfl (dont know lumens) . there is a 6w difference between them but if you put that away then what ?
my box will be plain white no mylar.