homemade carbon filter?

saw someone talking about a homemade carbon filter that they made with instructions?

looked around i couldn't find it though? anyone know where it might be?

yep,in the do it yourself section,theres actually a lot of them so find which one u like..depending on your room size etc..

theres big ones,small ones...

http://forums.mycotopia.net/cannabis/8038-diy-carbon-scrubber.html

https://www.rollitup.org/do-yourself/101248-best-diy-ez-walmart-carbon.html

this one has a list of em
http://forum.grasscity.com/do-yourself/569506-diy-carbon-filter-compendium.html

https://www.rollitup.org/do-yourself/388044-unofficial-dry-vac-carbon-filter.html

and heres the do it yourself section
https://www.rollitup.org/do-yourself/

found it thanks please delete thread