The ultimate hand hygiene test for cleaner, healthier hands.
Why test your technique? Throughout the day, your hands encounter countless bacteria. Poor washing can lead to illnesses like colds or salmonella infections, according to health experts.
How to test:
Lather with soap and sing 'Happy Birthday' twice while scrubbing—this matches CDC-recommended 20-second duration.
Interpreting results:
If it took longer than your usual routine, focus on key areas: palms, fingertips, between fingers, and thumbs (often overlooked).
Pro tip for drying:
In restrooms with only air dryers and no paper towels, minimize hand movement underneath. Rubbing can push lingering bacteria from pores to the surface, leaving hands dirtier.
