Hydrofluoric acid (HA) and Hydrogen Fluoride (HF) are very poisonous, highly irritating and corrosive. Hydrofluoric acid or Hydrogen Fluoride is fatal if inhaled, if swallowed or in contact with skin.

• Fluoride and other substances can be safe in small doses but dangerous in large quantities, because toxicity depends on dose. • When consuming water with fluoride added at the recommended level, it ...

Fluoride is a naturally occurring mineral used to strengthen teeth and prevent cavities. It’s been added to local water supplies in U.S. cities since the 1940s. There’s no evidence that fluoride is ...

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