Q. What is a hand sanitizer, and whether it keeps your hands germ-free?

Answer

A hand sanitizer is a chemical formulation that is used to sanitize hands. Sanitization is a process by which unwanted elements, living or non-living, is removed or neutralized to make a space or a body part completely free of any harmful things. Hand sanitizers keep the hands free from the attack of germs or any other kind of infectious microorganisms.