ona gel idea

My current grow idea is a small cabinet with an nft hydro setup.
Odour is something I want to minimise due to others in the house who don't like the smell, so far I've got a carbon filter and blower fan etc with a sealed door however I'm worried it still might smell.
I've got on a gel ready to go outside the cabinet.
My idea is to pour some of this into another pot which will hang in line with the outlet, this way the air will be forced to run over the top of the jar and thus contact the gel, I will use the rest in the room as normal.
Has anyone else tried this? or can anyone see any problems etc.
Thanks
Stocky

ona works pretty good i would just take the lid off and set where u want it and just add a lil water when it starts to dry

I've heard about the adding of water but happy to hear that another person suggests it too, from what I've read on it the better the circulation around it the more effective it is that's why I thought of flowing the outlet over it, another thought I had was piping the outlet into a tub of ONA with holes in the sides so that the air HAD to cross it.
Thanks
Stocky