I was curious because for some reason I had never thought of this, this is an interesting article, skip to the part about "NSF International": http://www.thedailybeast.com/articles/2014/08/19/are-water-filters-bs.html
Interesting. I always thought those pitchers are garbage.
Check this out on reverse osmosis though: http://science.howstuffworks.com/reverse-osmosis.htm/printable
I was curious because for some reason I had never thought of this, this is an interesting article, skip to the part about "NSF International": http://www.thedailybeast.com/articles/2014/08/19/are-water-filters-bs.html
Interesting. I always thought those pitchers are garbage.
Check this out on reverse osmosis though: http://science.howstuffworks.com/reverse-osmosis.htm/printable