thank you, the filter lasts a long time because it has the ability to be washed from the outside and the debris will fall off of it. washing it is very simple you just run it under some water and scrub it gently with an old toothbrush. yes there are replacement filters and I believe they're like six bucks or something like that
nope fail the water in the 16 oz was purified but BUT the funnel on the 16 was not so by poring back through a contaminated funnel ya re contaminated the water
