About Fluoride and Home Water Purification Systems:
“Water purification systems for domestic use have drawn significant attention over the past few years. This can be related to the improvement of public health and concern for water contamination.”
The discussion about Fluoride from the US National Library or Medicine:
“Fluoride absorption is mostly systemic or local; systemic absorption occurs through eating the element with food, water or fluoride pills, and local absorption by toothpastes and other fluoride-containing hygienic products. In many countries, the highest supply for fluoride absorption is systemic absorption through water consumption.”
Since most purifiers take out particles this is the conclusion of the study about home water purification systems.
“The filtration of water significantly decreased its fluoride concentration. The fluoride content of purified water was approximately as much as zero in some cases.”
See more of the article at the following link: www.ncbi.nlm.nih.gov/pmc/articles/PMC4623834/