Canadianclstgrower
Well-Known Member
Hey guys I’m a pretty experienced grower but am pretty more to indoor set ups I have a 190 cfm fan and carbon filter coming for my 2x3x8 closet I plan on running the fan at about half my question is what will be better for me to use like a 6” passive Intake or could I use like a 3-3-3/8” with a small USB fan to help draw in new air I just want to make sure the girls have lost of airflow while still keeping a bit of neg pressure I added pics of my current (very bad) ventilation system that idk I guess it brings in fresh air but I plan on ducting from the top and out the door I will add a 4” vent so it’s not just a hole in the door like it is now just would love advice on setting this up right