Hello everyone,

I am getting prepared to start my first grow. It will be in a townhouse that I own and I want to make sure to eliminate ALL (if possible) oder from the flowering plants b/c my roomates are worried of getting caught. I've read a few threads of some do it yourself carbon filter, but I can really seem to find any step by step instructions on constructing them. There are lots off cool picturtes of them, but I'm not neccessarily a badass when it come to handyman stuff. I really can't afford to pay $100+ for a premade filter. I read one post about using cat litter crystals, but I'm just not sure how to build it.

If anyone has any links for some threads that I might have missed or any suggestions of their own, they would be much appreciated!

PS- I only plan on grow 2-4 plants (from clones) and will be in a rubbermaid 30 gallon setup (2 stacked).

Thank You!

My $3 carbon filter. up panhead $3 filter, works great, I have one in place right now, with 10 flowering plants in my room.

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my eyes always look like so if you dont like it! NOT GREED PEOPLE!

Thanks for the quick reply, however the link seems to be broken....?

sorry, hold on, I'm trying. or just try to find it, I typed in "carbon filter" in the search, it was on the second page I think. the thread is called exactly the same thing as the link says.

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my eyes always look like so if you dont like it! NOT GREED PEOPLE!

Hey, here's a picture of the filter I built for my curing box.. It consists of a 4" duct fan that pulls air through a nylon stocking filled with activated charcoal and seems to be fairly effective for being cheap. I also vent my grow box through the garage wall and have added a nylon/activated charcoal in the output vent. All seems to be working well. You can build one like in the picture for around $40..

Parts: 5" Suncort duct fan, 5" end cap, hardware cloth, 5-4" duct reducer, 2 clamps, duct tape, nylon stocking, activated charcoal. If you need to move more air, go with a 6" duct fan and adjust the other parts as required. I'd use a 6-4" reducer.

Good luck!

Farmer Rich

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farmer's idea is just like panhead's , but cost a little more since it has a fan, and metal. use that links name that I gave you and look it up. it's up to you which you chose, good luck.

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my eyes always look like so if you dont like it! NOT GREED PEOPLE!

I use this design and there is no smell, it cost around 50 bucks:
Build your own Odor Neutralizing Machine - Dedicated to Cannabis Education. Medicinal, Recreational, and Cultivation.

Great! All great usefull information! I think I will start with the $3 design, seems like it will do the trick for my small grow. Thanks again everyone.