Carbon Filter size??

...the carbon filter and the fan will have a reading in CFM's or Cubic Feet per/ Minute. Find out what the square feet of your grow area is first off. You need to be able to refil your room 5 times per minute.

...so, if you had say 100 sqft space, you'll need a filter and fan that moves 500 cfm's.
 
yeah, I've got a 435cfm for my room.... 10x15.. it's not enough.... this is not a case where less is more... I'll be upgrading to a 1200cfm eventually...
 
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