If you re not using an air cooled hid light led cfl or regular hid.
Inline fan grow tent setup.
However if you have a larger grow tent or are using a grow room you would probably need a larger 10 12 fan.
So for a 4x4 grow tent with an area of 106 cubic feet a grow tent fan inline fan rated for 200cfm would get the job done.
There are many grow tent ventilation setups you can consider.
On an average if you are using a grow tent which is about 4 4 or 5 5 a 6 inch inline duct fan would be the best grow tent fan for you.
For those using a smaller grow tent look for a 4 fan.
Instead the inline exhaust fan will suck the air out of your tent creating a vacuum.
During this step it s time to get the grow tent ventilation setup.
Installing an inline fan shouldn t be rocket science.
Therefore you need to install an inline duct fan to get rid of exhaust gases and odours.
For the majority of grow tent growers a passive intake system works perfectly.
There are 2 ways you can set up your carbon filter based on whether you re using air cooled hid lights or not.
In this case the best way is to connect the carbon filter to the intake of your exhaust fan inside your grow space grow tent.
There are two ways you can set up the intake system for your grow tent.
That said the recommended approach is to hang the fan and filter inside the tent.
The only issue with grow tents is that they have poor air circulation.
What size fan is needed for other grow tent sizes.
How to set up your carbon filter.
I won t write out all the math but i ll use the same method i used for the 4x4 grow tent above one carbon filter and one 90 degree duct bend.
With grow tents you can grow crops indoors with a lot of ease.
Passive systems will actually not use an intake system.