Or light trap if light getting out is a mounting the fan in the exhaust sucking air out of the room accomplishes a.
Grow room intake light trap.
Yes i know they add yet more costs to your set up but they help to keep your indoor garden clean an.
The size of the intake hole doesn t matter as much in this system so if your intake hole is the same size as your out take hole then you might want to consider using an active intake.
One layer at the back of the cabinet and one layer at the hood seemed to block maybe 95 of the light.
Lets see your vent intake light traps growroom designs equipment forum at international cannagraphic magazine.
This short video gives a quick demonstration of how to install greenhouse light traps.
I used it on my passive intake for the hood vent.
Adding ventilation to your grow room.
Monster gardens 403 661 views.
All that this means is that you have one fan blowing air out and another blowing air in.
Active intake systems actively draw air into your grow room with a fan.
Do you believe in air intake filters.
Grow room 101 open air setup design configuration ventilation indoor gardens grow room tent setup duration.