I was told the same thing.  Notice it says reduction not removal.  Also they 
supposidly contain  manganese and aluminum.
The only way to know how well they work, is you test your water for fluoride 
before using the filters and then test again after using the filters.
Dr’s Data out of Chicago area does water testing, for a fee of course.

Nicky



> On Aug 5, 2018, at 10:48 PM, Deborah Gerard <[email protected]> wrote:
> 
> I was told these are worthless that the size of the fluoride molecule is too 
> small to be filtered out. 
> 
> I would sincerely appreciate input if this is true or not,
> 
> Thanks in advance,
> 
> Debbie
> 
> 
> Berkey Fluoride Water Filter- PF2 (Set of 2) 
> <https://www.berkeyfilters.com/berkey-water-filters/fluoride.html>
> 
> 
> 
> $50.00        
> Berkey Fluoride Water Filter- PF2 (Set of 2)
> Berkey Fluoride Filter (Set of 2) The Berkey water filter fluoride reduction 
> elements work by adding the abil...
>  <https://www.berkeyfilters.com/berkey-water-filters/fluoride.html>
> 
>