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2 minute cheap & easy carbon filter (no duct tape)

Discussion in 'Do It Yourself' started by MalteseGrower, Mar 21, 2008.

  1.  
    draconicblue

    draconicblue Active Member

    How big is your exhaust fan that this is attached to? Sorry if this question was already answered.
     
  2.  
    krane

    krane Member

    nice man, gonna try it :)
     
  3.  
    Alabaster Jones

    Alabaster Jones Member

    No duct tape? Good Lord,that's heresy!
     
  4.  
    homer371

    homer371 Well-Known Member

    great idea, even three years later. +rep

    edit: ok, i actually tried this, and i have to reprt a problem. a 188-cfm booster fan was not strong enough to push air through the cotton air filter. did i do something wrong? it seems that 188 cfms should be enough... so i turned it around and am now pulling air through the car filter and then the carbon, although now I think carbon dust is going into the air... any ideas?
     
  5.  
    MalteseGrower

    MalteseGrower Well-Known Member

    that is actually what i do now. get a scouring pad or alternatively a piece of sponge and cut to fit between the carbon and the net. it will stop the dust escaping.
     
  6.  
    333maxwell

    333maxwell Active Member

    Yup..

    That's how we won the war baby~!!
     
  7.  
    homer371

    homer371 Well-Known Member

    good info, thanks maltese. and maxwell.

    actually, a related point... if you're using sponge to hold the carbon dust, then is there any need for the actual car air filter? in other words, if you have some carbon in a net bag and sponges on either side, and fit that whole contraption in the "in" side of the fan, will that do the same thing?
     
  8.  
    PJ's HIGH

    PJ's HIGH Member

    Yeah this is a really good idea, quite helpful.
     
  9.  
    tricka

    tricka Active Member

    technically yes but you woudnt want that hitting the impeller blade would you??
     
  10.  
    Spicy8305

    Spicy8305 Active Member

    That looks great, my plan was very similar except I was going to keep the activated carbon in mesh by sewing little pouches as I saw on another site. but hell!! I'll just forgo all that bru-jaja and simply dump it if it works
     
  11.  
    MalteseGrower

    MalteseGrower Well-Known Member

    you could put some ducting inbetween as a spacer if you like. post a pic when you are done
     
  12.  
    BluBerry

    BluBerry Well-Known Member

    Seems like a cheap and easy way of doing a filter. Most I see are put inside the grow cab pulling thru the filter. Is this one meant to go outside the cab and have the air pushed thru it rather than be pulled? Which works best? I'll have to get me a good fan. Anyone used this with good results?
     
  13.  
    mazand1982

    mazand1982 Active Member

    thats cool but it will restrict air flow big time
     
  14.  
    sucky#

    sucky# Member

    nice idea for carbon filter man,smart thinkin!
     
  15.  
    convict156326

    convict156326 Active Member

    so in the roof of my tent if you were to look you should see the cone shaped filter, and inside the filter have the carbon dumped in, with a sponge on top?. then on top of the roof have the 6 inch inline fan(400 cfm i think) with that just venting into the room. is this correct? and would this be adequate for a 40x40x70 tent with a 400 mh/hps? sorry if this has been asked alot. im on my psp. very pain in the ass. but this thread was too awesome to pass
     
  16.  
    outofbodyspecial

    outofbodyspecial Active Member

    I've seen cone filters that are bigger- with more space inside to put activated carbon. Is that better, or will having too much carbon restrict the airflow?
    Otherwise, I'll just stick with the same cone filter as the TS.
     
  17.  
    SwaggerJacker

    SwaggerJacker Well-Known Member

    Obviously this would depend on what size cone you using for your air filter but how much charcoal was needed to fill your air filter?
     
  18.  
    Min8040

    Min8040 Active Member

    Thank you for sharing this with us all MalteseGrower. I will definetly give this ago when I deside to setup.
     
  19.  
    MalteseGrower

    MalteseGrower Well-Known Member

    with the filter i used i needed exactly one bag
     
  20.  
    Nastylnate

    Nastylnate Member

    Great idea man, gonna try this for sure.
     

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