Hello, first of all I'm no artist but I'm proud to show you my sketch. Still trying to figure out which fan and filter I need for my grow.
From what i found se need to do these math calculations:
EUROPE (M³H)
Tent size: 1.20x0.60x1.70=1.23m³
1.3 X 60 (minutes) x 1.33 (25% filtre) =...