Mylar goes on the walls you don't need to put it on the floor. The gel stuff works fine for a week or so but it does not work for long and the time you need it to work it wont. You are dealing with a female after all

Build a carbon scrubber it's easy and takes only a few minuets here is how you do it.

You get 4 furnace filters not cheep ones and not expensive ones. Get the ones that cost about 5 bucks at HD. They have a metal screen on one side to add support. Place the first one with the metal down. Add 2 pounds of active charcoal and spread it around (I get mine from the fish store that sells pond stuff it cost 4 bucks a pound). Then you place another filter (screen side down) add another 2-pound bag of charcoal then the third filter and the last 2 pound bag of charcoal. Last you want to place the last filter with the metal screen side up. Line them all up and use gray tape to seal all the ends together so the air can only go through the filter and not lose any charcoal out the ends. Make a box that all 4 filters fit snugly in. At the top of the box leave about 8ā? of space. Install your fart fan at the top of your box the 8ā? spacing will help to even out the air pressure on the intake. Now I use a furnace screen like a house uses slightly larger then the filters so with 4 screws I can change it out and access what I need to. Mine is installed in the roof and the return just pumps it back into my room. Really itā??s that easy the whole thing is to seal all the filters together so they are just one thick filter and to have the air gap at the top so your fart fan does not just draw air from one place in the filter. It really does work.
Zandor Reviewed by Zandor on . NEW GROW CABINET, WHAT DO YOU THINK? Hey whats up, Im new to this growing thing. I made a cabinet, I would like some feedback on it. It has 2 mothers in the back, then six little beauties in the trays. Just put an A/C unit in it, much better now i can keep it at 75%. I have question though, it is much cooler at the top. Do I measure the Temp. at the bottom of the plants or closer to the light? Thanks and happy smoking. Rating: 5