How To Make A Cheap Carbon Air Filter for Growing Cannabis DIY

One of the cheapest ways to build your own high capacity high flow Carbon Air Filter for grow tent or your grow room..


  1. If you do the math you could have a whole kit from Amazon with replacement filters compared to the price of the materials for this project. Cool idea, but kills the idea if it's just as expensive as an already finished professional product

  2. I made one of these to make a gross bathroom smell better. Tupperware containers bolted onto each other and then filled with activated charcoal. Worked a treat. This looks great as well!

    Might have to make another one for cannabis grows as well (even though it's legal in Canada).

  3. Nice job! The "pre-filter" on the lable only means it's goes before the filter, it doesn't contain any carbon, it only filters large objects, like the panyhose is doing. In your case the pantyhoses will be sufficient and save additional cost from the pre-filter and straps etc. A basic 4" carbon filter is only $65, so spending $50 on this isn't worth it, but re-activating the filter or adding the activated charcoal, like you have in the jar would save cost. Stick the top of the inner white bottle through the bottom of the cut black piece, so that there is a lid for both ends, and then you'd be able to fill the carbon fully once assembled.

  4. Keep in mind that a pro version is like 100 bucks… I get diy, im a diy kinda guy, just seems odd. Container sizes worked very well, it looks huge! Im not sayin it wont work. Gave me diff ideas though.. Thanks!

  5. Thanks for the effort put in this video but hey all the money u spend could get u 4in carbon filter from Amazon in 2 days max I don't see the point

  6. So you just spent about 50 bucks plus a few hours of your time for building your own filter when a good carbon filter costs you about the same and has better build quality o.O

  7. That was a waste of money. Activated carbon needs to be washed to open up those pores I’m guessing you didn’t do that. That fizzling sound…

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