Do water ionizers have to meet any standards to be sold in the US? Are all of them safe? or what should you look for?

Sorry CJ I do not buy the hype on these.

Hi Saved...

I know you don't, but lot's of people do, so I am just trying to figure out what is the standards that they need to meet to be sold in the US? I believe that devices sold/used for health or filtration needs to meet some world or National standard(s).