Use the powerful Ultraviolet Rays to kill all of the bacteria. Such as Dysentery Germs, Typhus, Bacillus Coil.
Staphylococcus,...etc. Its effectiveness is stronger than the sun light.
It is made in Stainless steel can be rust-proof. Comes with a UV glass. Sanitary and security.
It can be hung on the wall to do space-saving.