käsidesinfektio

Käsidesinfektio, commonly known as hand sanitizer, is a liquid, gel, or foam that is used to disinfect hands to remove germs. It is particularly useful when soap and water are not readily available. Most hand sanitizers contain alcohol as the active ingredient, typically ethanol or isopropanol, at concentrations between 60% and 95%. Alcohol-based hand sanitizers work by denaturing proteins and disrupting cell membranes of microorganisms.

The effectiveness of hand sanitizers depends on several factors, including the alcohol concentration and proper application. It is important to rub the sanitizer over all surfaces of the hands, including between fingers and under nails, until the hands are dry. Hand sanitizers are effective against many types of bacteria and viruses, but they may not be as effective against certain types of germs, such as norovirus or Clostridium difficile.

While convenient, hand sanitizers are not a substitute for handwashing with soap and water, especially when hands are visibly dirty or greasy. Handwashing is more effective at removing all types of germs and other residues from the hands. However, in situations where handwashing facilities are inaccessible, hand sanitizers provide a crucial alternative for maintaining hand hygiene and reducing the spread of infections. It is important to store hand sanitizers out of reach of children and to use them according to instructions.