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Fluoride

Fluor, or fluoride, occurs naturally in the bedrock. Small amounts of fluoride, such as that added to toothpaste, have a caries-reducing effect and stabilize bone tissue.

Is it dangerous to drink water with fluoride in it?

Drinking water with fluoride is safe at regulated levels and can even help prevent tooth decay (dental caries). However, consuming water with excessively high fluoride concentrations — typically above 1.5 mg/l as recommended by the WHO — can pose health risks, particularly for children and pregnant women. If you suspect your water has unusually high fluoride levels, it is advisable to use a certified filtration system.

What level is acceptable?

A side effect of too much fluoride in the water is dental fluorosis, stains on the teeth. Young children can get permanent damage to even undeveloped teeth. Ingestion of too much fluoride can be toxic and eventually lead to osteofluorosis. Ostefluorosis means increased bone mass and bone density that causes pain, stiffness and reduced mobility in the joints.

Pregnant women should avoid drinking water with high fluoride concentrations. When breastfeeding, fluoride does not significantly pass into breast milk, so breastfed infants are generally not at risk from fluoride in the mother's drinking water.

The table below summarizes fluoride concentration ranges in drinking water and their implications for caries (cavity) protection and health risk. These guidelines are based on WHO and European drinking water standards:

  • <0.8 mg/l: The drinking water provides limited caries protection.
  • 0.8–1.2 mg/l : Drinking water has a caries-preventing effect.
  • 1.3–1.5 mg/l: Drinking water has a caries-preventing effect. However, the water should not be given to a greater extent to children under the age of 1/2.
  • 1.6–4.0 mg/l: Drinking water has a caries-preventing effect, but fluorosis risk increases at these levels. This water should only be given in limited amounts to children under 18 months of age.
  • 4.1–5.9 mg/l: Drinking water should only be given in limited amounts to children under 7 years of age, and only occasionally to children under 18 months of age. At these concentrations, alternative water sources are strongly recommended for vulnerable groups. Note: The WHO guideline value for fluoride in drinking water is 1.5 mg/l; levels above 4.0 mg/l exceed the U.S. EPA enforceable maximum contaminant level.

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Bluewater machines remove over 99% of fluoride in your water. 

Do Bluewater machines remove fluoride?

Yes, Bluewater removes over 99% of fluoride in your water!