Hexafluoride is a toxic industrial waste largely from the aluminium processing industry. It is not to be confused with naturally occurring fluoride. Hexafluoride is difficult to dispose of because it is so toxic; thinning membranes in the nose and lungs. Please help to stop the corporations selling this poison to the health departments under the guise that it is good for the teeth...it is not. There is no proof that it is, and what is more there is ample proof that it is not and may also be behind heart disease, auto-immune diseases, asthma and nosebleeds. Please see: http://www.youtube.com/watch?v=Q3y8uwtxrHo
http://www.ukcaf.org/
http://www.fluoridealert.org/articles/wastenot414/
http://ukagainstfluoride.blogspot.co.uk/
Thank you.