The main element of Nanosil contains hydrogen peroxide (H2O2) and a trivial amount of silver ion (Ag+). Hydrogen peroxide has a wide range of antimicrobial effect, and the trivial amount of Ag+ works as a catalyst, and ensures enduring and sustainable effect of hydrogen peroxide. The antibacterial impact of Ag+ is the result of strong covalent bond with bacterial proteins leading to deposit of proteins and inactivation of bacteria. These two compounds show synergist impact. Nanosil is capable of eliminating biofilms despite other disinfectants. It has the ability to kill bacteria and viruses protected by a polymer membrane named biofilm. The oxygen released from hydrogen peroxide demolishes the protective membrane and enables Nanosil to penetrate into it and kill microorganisms. Nanosil does not have harmful impact for the environment because hydrogen peroxide as its fundamental element decomposes to water and oxygen, both of which not contaminating the environment.