Charcoal Filters

Discussion in 'Advanced Growing Techniques' started by trupti, Oct 15, 2008.

  1. no man u dont need that
    those ones are for high CFM raitings

    and thay will block your fan if its not as powerfull
    as those supposed to fit this kinda filters

    the filter CFM raiting must fit your fan CFM power
     
  2. You need to run this in series with a "real" fan. I am in your boat right now as I can grow legally, but rather keep it more stealth. They look like this...

    [​IMG]

    They don't just move air, but have head pressure needed to push the air past the carbon. I have been fine for now just my using a 120V type computer fan to pump my 6" ducting, but its a no go for forcing it through the filter. I think a typical fan of this nature uses around .8 amps (6" size).

    ps

    I said head pressure because thats what we call it regarding to pumping water. Is there a batter term for air?
     

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