passive intake

Does anyone know of or seen a type of powerless turbine vent? I'm running a passive intake and using the lower intake vent hole to pull the air in. I'd like to have a sort of duct tube that has a fan blade in it that can be ran off of the vacuum of the exhaust to help distribute fresh air...

I have three passive intakes on my tent, two 8in and one 6in. Problem is the tent's walls still get sucked in pretty hard and I don't feel like spending money on an intake fan. I suppose a fan controller could do the trick but are there work-arounds that would keep me from sacrificing air flow...

Hi, In the process of designing/building a micro grow tent, it will be pvc pipe frame with panda wrap/film - After some advice on how best to create the intake vent(s) through the panda? Im hoping to use some type of micro/insect mesh and prevent light leaks...I thought potentially some type of...

So as the title states im growing in a minimally heated basement. I have partioned off a section with 2x4 insulated walls and will be splitting into a veg and flower room. I will have humidity and temp controllers in flower and veg room. My question is would it be better to add pasive intakes on...

Hi guys, first of all, thank you, I'm having a lot of help here on the forum. I'm setting up a grow space that has something like 190x120x240cm where I intend to build two pipe supported tents with about 80x95x200cm. The light will be 6 vero29 3500K B on a HLG 480w driver, each side. I'm...

Quick rundown. I have a metal cabinet approximately 25w x 20d x 68h. I put a 6" Vivosun inline fan and carbon filter in it along the top. It exhausts straight to the outside of the cabinet. The door will be sealed to the best of my ability with some door seals or weather stripping. I need...