trace amounts of fourine will cause long term harm. If you are under 30 or are a pregnant woman you should avoid swallowing it.
Thourougly rinsing your mouth after brushing your teeth or using a flouride product should be good enough. filtering tap water is a must but mostly for the stuff besides flourine like algecides and anti corrosive chemicals the pour in the water to clean out the piping infrastructure.
trace amounts of fourine will cause long term harm. If you are under 30 or are a pregnant woman you should avoid swallowing it.
Thourougly rinsing your mouth after brushing your teeth or using a flouride product should be good enough. filtering tap water is a must but mostly for the stuff besides flourine like algecides and anti corrosive chemicals the pour in the water to clean out the piping infrastructure.
https://youtu.be/AufJunNmisk&t=40m46s
(post is archived)