Found the book where I learned about Chlorine Dioxide: https://educate-yourself.org/cn/Miracle_Mineral_Solution_of_the_21st_Century-Part-1-Archbishop-Jim-Humble-Free-2006-Edition.pdf
Haha wow - that's an old one. The Jim Humble stuff put me off when I originally stumbled upon it. The church that he set up to protect what he was doing felt off to me (I was fairly anti religion at the time). Andreas Kalcker has picked up when Jim left off. He uses CDS which is a more pure version of chlorine dioxide & is super easy to make at home.