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 purifiers 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.”.
Posted in Water.