I have read a few threads here about how people deal with the odors put off by the fermentation. I read about some just dealing with it (my first choice), and some using a sort of activated charcoal filter over top to catch the odors.
Well since I just got out of the military a year ago I went rooting through my stuff and found a gas mask filter. The opening for filter where it threads into the mask is about the same diameter as my vapor lock. I just wrapped a piece of blue painters tape (due to low stick adhesive) and will see how well it filters out the smell.
These could be a cheap way to keep the significant other at bay. Mine started complaining two days into fermentation. They can probably be had for $10 +- at local army surplus stores. The military was going to a new mask when I left last year so these filters will be all over the place.