käsihuuhteilla

Käsihuuhteilla, often translated as hand sanitizers or hand rubs, are a liquid, foam, or gel formulation intended to disinfect hands. They are primarily used when soap and water are not available or practical. The active ingredients in most hand sanitizers are alcohol-based, typically ethanol or isopropanol, in concentrations of at least 60%. These alcohol formulations kill a wide range of bacteria and viruses by denaturing their proteins. Some alcohol-free hand sanitizers exist, often containing quaternary ammonium compounds, but their efficacy can be more limited and they may not be as effective against all types of pathogens.

The use of hand sanitizers is a common practice in healthcare settings to prevent the spread of infections. They are also widely available to the public, particularly in areas with high foot traffic such as shopping centers, schools, and public transportation hubs. Proper application involves dispensing enough product to cover all surfaces of the hands and rubbing them together until they are dry. It is important to note that hand sanitizers are not a substitute for handwashing with soap and water when hands are visibly dirty or greasy, as soap and water are more effective at removing dirt, debris, and certain types of germs. Overuse of alcohol-based sanitizers can sometimes lead to dry skin.