Odor control questions

Hey guys, I'm planning on doing a stealth grow box in a rubbermaid tub similar to the one in the video below. I know that what strain you're growing plays a significant role in how much of a smell there is, but how much of a smell will there be from such a small plant? I bought one of those as seen on TV twin draft guards to block off the airflow from under my door, so hopefully that helps but I have a few other ideas. 1. Attach some activated carbon to the inside of my box over the exhaust fan. 2. Ona gel with either an ona bucket or just some in a bowl with a fan blowing on it. 3. Hamilton Beach true air carbon odor eliminator. There isn't a whole lot of info on this product from growers using it except for one thread where people were arguing that it works and others saying it doesn't, so I'll leave the link so you can look for yourself. Any other cheap suggestions to control the smell would be greatly appreciated!

http://www.google.com/shopping/product/869834075361278848?q=hamilton+beach+true+air&bav=on.2,or.r_qf.&biw=1277&bih=638&bvm=pv.xjs.s.en_US.nZdU-ju1wak.O&tch=1&ech=1&psi=WCtKU9fMJYjl8AHAxYHYBw.1397369695431.3&ei=XytKU_nIFeqb8AHJ64GICw&ved=0CNwBEKYrMAY

Bump

I've read that Gonzo Odor Eliminator is good if you only have a few plants. $7 on Amazon and when it stops working, you put the crystals in the sun and they regenerate. I'm not speaking from experience, but am going to try it my next grow

I've also read that Onagel scent will be absorbed by plants. I have the spray for my car and it's pretty pungent, works well, but I wouldn't want my weed to taste like it