How it Works Would it be possible for someone to write on how the water filters out anything? The study in the article implies that some things are filtered, however, I could not find anything that says how. My guess was that the water stops anything heavier than it, but that is wrong as all nicotine and tar would be stopped, not just some. Then I thought perhaps it works by stopping all particles relative to how water soluable they are, but then wouldn't a lot more tar be filtered than the study seems to suggest?   Zeroedout  