Why is ozone added in some water bottles? What's the use of it?

1 Answer

Ozone is used to treat water for drinking. It kills most organisms i water which causes water born infections.

Explanation:

It is better than Chlorine. ozone does not leave any residue in water,
"Drinking water treatment using ozone to remove iron, manganese, taste, ... Ozone has a greater disinfection effectiveness against bacteria and viruses ... This is one reason that the post-filtration system may include an activate carbon filter" from Wikipedia.