Why do companies claim to kill 99.9% germs? How does bacteria always survive?

Why do companies claim to kill 99.9% germs? How does bacteria always survive?

Apart from mosquitoes, if there is anything else in the world that cannot be eradicated, it is germs. Perhaps this is the reason why big companies always claim to kill 99.9% of germs in their disinfectants. You would never have seen any company claiming that its product kills 100 percent germs. However, it is worth thinking that how does the last germ always survive?   In this matter, the US Food and Drug Administration (FDA) and Center for Disease Control (CDC) have made some guidelines. These guidelines are based on…

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