"Handwashing vs Hand Sanitizer: What's the Difference?"
In the ongoing battle against germs and viruses, two of our primary weapons are handwashing and hand sanitizers. Both are crucial in preventing the spread of illnesses, but they are not interchangeable. Each has its own strengths and is more effective in certain situations. Let's delve into the differences between handwashing and hand sanitizers, and understand when to use each.
Understanding Handwashing
Handwashing is the gold standard of hand hygiene, recommended by the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC). It involves using soap and water to physically remove germs from your hands. Here's how to do it effectively:
- Wet your hands with clean, running water (warm or cold).
- Turn off the tap and apply soap.
- Lather your hands by rubbing them together with the soap. Make sure to lather the backs of your hands, between your fingers, and under your nails.
- Scrub your hands for at least 20 seconds. Need a timer? Hum the "Happy Birthday" song twice.
- Rinse your hands well under clean, running water.
- Dry your hands using a clean towel or air dry them.
Understanding Hand Sanitizers
Hand sanitizers, also known as hand antiseptics, are alcohol-based gels, foams, or liquids that kill germs on your hands. They are a convenient alternative when soap and water are not available. Here's how to use them effectively:
- Apply the gel to the palm of one hand.
- Rub your hands together, covering all surfaces of your hands and fingers.
- Do this until your hands are dry. This should take around 20-30 seconds.
Key Differences: Handwashing vs Hand Sanitizers
While both methods are effective in killing germs, they have distinct differences:
| Handwashing | Hand Sanitizers |
|---|---|
| Removes visible dirt and grease | Does not remove visible dirt and grease |
| Kills a wide range of germs, including norovirus and cryptosporidium | Kills most types of germs, but not all (like norovirus and cryptosporidium) |
| More effective when hands are visibly dirty or greasy | More effective when hands are not visibly dirty or greasy |
| Does not evaporate, leaving hands wet and ready for use | Evaporates quickly, which can cause skin dryness and irritation with frequent use |
When to Use Handwashing and Hand Sanitizers
Here's a simple guide on when to use each:
- Use handwashing when your hands are visibly dirty or greasy, or when you've been handling raw meat, poultry, or seafood.
- Use hand sanitizers when soap and water are not available, and your hands are not visibly dirty or greasy. After using the restroom, touching animals, or blowing your nose are good times to use a hand sanitizer.
Remember, while hand sanitizers are convenient, they should not replace handwashing. Always opt for handwashing when possible. Both methods play a critical role in preventing the spread of illnesses, so let's use them wisely and effectively.
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