How much arsenic does a typical Berkey system filter out? According to the manufacturer and the testing they have done (using outside companies), the Black Berkey Elements will take out >99% of the arsenic from the water. If combined with the PF-2 fluoride / arsenic reducers, the result is an even higher level of arsenic reduced, but the manufacturer does not have data on exactly how much the PF-2 fluoride arsenic filters take out. They only state, “This product uniquely targets the entire family of arsenic oxide anions as well as the arsenic cations.”.
How Much Arsenic Does My Berkey Filter?
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