What Size Cfm Fan Do I Need For A 6x4 Grow Area?

  • Thread starter RizzleGizzle
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RizzleGizzle

RizzleGizzle

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looking at fans and charcoal filters because the smell is becoming to overwhelming for my wife.
 
Monster762

Monster762

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Id think anything around 200cfm or more be good. But no pro. That would by the math exchange all the air every 1 minute.
 
Dan789

Dan789

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I’m drawing exhaust from two 4x4 tents through a diy setup, one six inch max fan out through a Phatt filter 10x24. Works flawlessly.
 
oldskol4evr

oldskol4evr

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i run 400 cfm wide open both intake and exhaust,both filtered,one pushing one pulling,no ac or heat
 
K

kansabis

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Take your height multiplied by your width by your length and get the cubic feet of your room,you want a fan that will change out that air at least around every minute-400cubic feet room would need a 400cfm fan. Hope that helps.
 
K

kansabis

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Also if you are pairing this fan with a carbon filter then its ok for the fan cfm to be a lil bit higher than your rooms cubic feet cuz the filter and any turns in your ducting will decrease the fans efficiency some.
 
RizzleGizzle

RizzleGizzle

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18
IMG 0992
I found this set up hope it is enough cfm for my room it's about the most affordable I can find
 
K

kansabis

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I use the same fan and a 6x20 filter in a 4x4 tent and now in a 2x2 tent no problems,I also use a speed controller.
 

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