The photocatalytic activity of titanium dioxide results in thin coatings exhibiting self-cleaning and disinfecting properties under exposure to ultraviolet radiation, i.e. Sunlight. 

Nano Silver is nothing new, it is known to be effective against microbial, bacteria, fungus, etc.

Covalent bonding allows V-shield Self-Disinfecting Coating to stay onto surface for up to 90 days.