Pt 1 Water disinfection and surface disinfection with hypochlorous acid (HOCI) you make at home or on the road using non-iodine salt (kosher salt) and tap water. Device is USB powered using any phone type charger.
4ml per liter of water or 4ppm (parts per million)
The device is $45 but you can buy Amazon ones for less than $20.

Attached is my AI chat asking specifically about water disinfecting. This is NOT water purification.

https://ecoloxtech.com/products/natural-sanitizer-and-cleaner?variant=49984665977112