Fan suggestions

Discussion in 'Growing Marijuana Indoors' started by clanclan, May 8, 2011.

  1. how much fan exhaust cfm is needed for a micro grow box aprox. 44x44x21cm(WidthxHeightxDepth) with good intake space. will an 80mm pc fan 33 cfm be enough? or maybe 2?
    or 4.7 inches with 102 cfm?
    Last thing on the list then ill get my babies goin!
  2. 44 x 44 x 21 = 40,656 cubic cm = 1.4 cubic feet.

    Use an exhaust PC fan and use passive air intake.
  3. the problem is the size of the exhaust fan, is a regular 12v 8cm enough or should i get 12cm fan?

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