something like a Glad "Plug-in" will only mask the smell..

if you live with your parents and you have to ask about smell.. your parents are either against you growing.. or against you using pot altogether..

I'm sorry but you really shouldn't be growing.

The smell will be strong, especially when you're getting late into the flowering stage.

Not only is it practically impossible to hide something in your parents home... but if anything were to happen and you got busted.. the axe will fall short... on your parents.

They own the home. they're responisble for what happens in thier home... and you can be sure as shit.. they'll know if you're growing pot behind thier back