if i were to use this little ionic air purifier (http://www.heavenfresh.com/catalog/xj1000.php) and just shove it in my grow box do you think it would eliminate all odor? right now it'll be just to cover up the smell in my room which currently smells like a greenhouse, but when the flower will it get rid of that smell aswell?
No way that will not work...and if it did work it would take the smell out of your weed....the only reason you would need to do that is if your were suspected or you smelt it outside...otherwise get a carbon filter...takes smell completly out and not out of your bud.
that thing looks pretty weenie to me. I use this industrially rated one and it does a great job. It's just outside of my grow room and the exhaust gets trated by it. My whole place smells just like after a lightening storm - nice and clean.