Smell

I'm growing in a closet, and I was wondering how to manage the smell. I'd rather not drill a hole in my ceiling and fit it with a carbon filter (not because I'm cheap, just don't like chopping up my property unnecessarily lol). Basically I have the whole thing outlined with mylar, except the bottom and top parts of the door so fresh air can come in. The smell in my house is not a problem, but I don't want to open my doors and let a waft out or not be able to open up a window for some fresh air. Any suggestions? I'd be greatly appreciated

ona gel.

You mean something like this?: http://www.onaonline.com/prod-onagel.php
Should I put them with the soil, or just near the plants? Any recommendation on how many per plant?

Hey grape, what's your feedback on ona gel, if you've used it in the past? Is it effective enough?