CLEAN YOUR WATER FOR ONE DOLLAR

As a water treatment technique, UV is known to be an effective disinfectant due to its strong germicidal (inactivating) ability. UV disinfects water containing bacteria and viruses and can be effective against protozoans like, Giardia lamblia cysts or Cryptosporidium oocysts.

https://ultraaqua.com/uv-light-and-water-bacteria/
https://rumble.com/vjn95j-food-shortages-coming-soon.html