New set up (AIR CIRCULATION)

[TomTomMj]

Hello all. This is a new project I am working on. 2x4x5 grow space.
I will be running one 300 watt led.
Cubic space is (2x4x5) =40
40x 3.5= 140 cfm is what I found for exhaust requirements. I'm stuck in the matter of having such a small space I am limited to what I can buy.

I want to know
- cfm rating of intake fan
- if I should get a exhaust fan of 140 cfm or more(because it will be pulling through a carbon filter).
Aswell if the carbon filter should be exact cfm as the exhaust fan,ex. 140 cfm fan/ carbon filter 140+/- more or less?

 

[qballizhere]

Hello all. This is a new project I am working on. 2x4x5 grow space.
I will be running one 300 watt led.
Cubic space is (2x4x5) =40
40x 3.5= 140 cfm is what I found for exhaust requirements. I'm stuck in the matter of having such a small space I am limited to what I can buy.

I want to know
- cfm rating of intake fan
- if I should get a exhaust fan of 140 cfm or more(because it will be pulling through a carbon filter).
Aswell if the carbon filter should be exact cfm as the exhaust fan,ex. 140 cfm fan/ carbon filter 140+/- more or less?

Have a look at the 4" inline fans once you add a carbon filter to it you will loose 25% of its rated cfm. That is with any size fan and filter.
http://www.htgsupply.com/products/growbright-4-inch-inline-fan-carbon-filter-combo
I dont run in tents so my experience is a little different I would put the carbon filter in the tent and have the fan on it blowing out of the tent and a small inline fan for the intake fan. http://www.htgsupply.com/products/growbright-4-inch-inline-duct-fan