We’ve all heard the advice: wash your hands for at least 20 seconds. But why that number? It’s not just a guess – it’s backed by science. Studies show that washing for less than 15 seconds removes far fewer germs, while 20 seconds allows soap to break down oils, lift dirt and dismantle viruses effectively.
It’s also about coverage. Most people miss key areas like fingertips, thumbs and between fingers. That’s why technique and timing go hand in hand – pun intended.
Our UV kits give instant feedback on handwashing technique, showing missed spots and helping learners build better habits. When people see the difference between a 5-second rinse and a proper 20-second wash, the message sticks.
Whether you’re running a classroom demo or training aged care staff, showing the science behind the timing helps reinforce why it matters – and how to do it right.
