I'll post my opinion on this VERY controversial subject.
I've done extensive research on this subject. There is only one way to economically remove 100% of the fluoride ( and other nasty chemicals) found in tap water or in well water. A water distiller is what we use:
This model distills 1 gallon per 6 hours, perfect for the wife & myself. Amazon has models for up to 5 gallons for larger families.
What is wrong with Reverse Osmosis (RO).
Only remove 90% and less as they get older.
* Replacement elements are expensive
* They waste a LOT of water down the drain. Up to 70% or more losses.
Distilling is far superior & less expensive in the long run
Other filters remove far less than 90% and still have expensive filter replacement.
24 Doctors Report on Distilled Water:
If anyone is concerned that distilling removes minerals ( we are not concerned ) you can order mineral additives
for distilled water from Amazon. IMO we get all the minerals we need from FOOD.
You should see the stinking yucky stuff left behind in the distiller from our well water.
Bottom line, I think your best choice is bottled mineral water or distilled water. Calculate the cost of electricity for distilling in your area. It might cost less to just buy distilled water at the store if your electric rates are expensive. Our distiller uses 600 watts per hour * 6 hours = 3,600 watt-hours. Our rate is 10 cents per Kwh, so our cost per gallon is 36 cents. At the store 50 cents or more per gal.
Hopefully my opinion will not generate a firestorm of controversy as it usually does.