Actually if you want to make ordinary vodka taste like expensive Vodka filter it through the brita a couple/three times.
You can do this with cheap Vodka attaining amazing results. The filtering eliminates the impurities, that contribute to the hang over, and bad taste. 7 dollar vodka + brita = expensive tasting vodka.
I would not filter a liquor that is prized for it's taste.
For a moment I thought the guy in the picture was Cigarbid Steve.