“Please wash your hands” – why the poster isn’t working

If your staff aren’t washing their hands, a poster won’t fix it. They don’t need more “must wash hands” signs – they need to see why proper handwashing matters and what “proper” actually looks like.

The Comstock’s article “Employees Aren’t Washing Their Hands. Is It My Job as HR to Tell Them What They Should Have Learned in Kindergarten?” sums up a very familiar problem: people complain to HR that colleagues aren’t washing their hands, and someone suggests putting up a sign in the bathroom.

The HR columnist points out something important: the people skipping the sink aren’t doing it because no one ever told them about handwashing. They’ve seen the posters. They heard about germs in kindergarten. They know.

The issue isn’t a lack of information – it’s behaviour.

So when we add one more “Wash you hands” sign on the mirror, nothing really changes. The people who already wash properly feel nagged. The people who don’t wash either ignore it or give you a token splash to keep their conscience quiet.

If you want real change, you have to move past “what you should do” and focus on why it matters and how to do it properly.

Employees Aren’t Washing Their Hands. Is It My Job as HR to Tell Them What They Should Have Learned in Kindergarten?

READ THE ARTICLE

Knowing is not the same as caring

Most adults can tell you the basics:

You should wash your hands after the toilet
You should use soap
You should wash for “about 20 seconds”

But that knowledge doesn’t always turn into action.

A 2024 report by the University of Western Australia’s Medical School showed that almost one in five people admit they don’t always wash their hands after using the toilet.

And even when people do wash, studies consistently find that typical handwashing is much shorter than recommended – often just a few seconds under the tap.

So the problem isn’t awareness. The problem is:

It doesn’t feel urgent. “I’ve always done a quick rinse and I’m fine.”
Germs are invisible. If you can’t see the risk, it’s easy to downplay it.
Bad habits feel normal. If everyone around you is doing “splash-and-dash”, it feels acceptable.

A poster doesn’t shift any of that. It just repeats information staff already half-believe and half-ignore.

What actually happens at the sink

Watch a busy workplace bathroom for long enough and you’ll see the same patterns:

No wash at all – out of the cubicle, past the sinks, straight to the door.
Splash-and-dash – flick the hands under water for a couple of seconds, maybe no soap.
Soap-and-run – a bit of soap, quick rub, rinse, out.

From a germ point of view, all three are surprisingly similar. Short washes and poor technique leave high-risk areas like fingertips, thumbs and between the fingers still contaminated. On paper, everyone “knows” they’re meant to wash properly. In practice, most people have never been shown what effective handwashing looks like, or given a reason to change beyond a vague “it’s more hygienic”. That’s where live training beats posters every time.

Why a live demo changes behaviour

The Comstock’s article makes the point that HR can’t realistically police every bathroom visit – and that nagging people about hygiene is a sure way to damage relationships.

What HR can do is create an environment where good habits are the norm. A short, practical handwashing session does three things no poster can:

It makes germs visible
When people see “clean” hands glowing under UV light, it hits differently. Germs stop being abstract and start feeling real and a bit confronting.
It exposes the gap between “I’m fine” and reality
Staff confidently do their usual wash… then see how much “germ lotion” is still on fingertips, thumbs and around jewellery. That moment of surprise is often enough to reset habits.
It shows exactly what “good” looks like
Instead of “wash for 20 seconds”, you can walk through each step: palms, backs of hands, between fingers, thumbs, fingertips, wrists, and proper drying. People leave knowing what to do with their hands, not just a number to count to.

Education research backs this up – interactive, hands-on activities are far more effective at changing behaviour than passive reminders.

What a Glow 2 Show session looks like

Glow 2 Show is designed to create that “light-bulb moment” for staff in a safe, slightly fun, but still very serious way.

A typical session might look like this:

Set the scene
A quick chat about how bugs spread at work – bathroom → door handles → keyboards → food – and what that means for sick leave, vulnerable colleagues and, in food settings, customer safety.
The first “wash”
Staff rub a tiny amount of Glow 2 Show lotion or powder onto their hands. It’s harmless and invisible in normal light. They then wash their hands the way they normally would.
The reveal in the GlowBox
One by one, they put their hands under the GlowBox or other UV light. Anywhere the glowing product remains is a spot that didn’t get cleaned properly – fingertips, around nails, between fingers, around rings, thumb web, wrists.
This is the moment people remember. You don’t have to lecture – the glowing patches do the talking.
Coaching the right technique
You then demonstrate proper technique and have staff repeat the wash, focusing on all the missed areas. When they go back under the UV after a proper wash, the difference is obvious.
Link it back to real-world germs
Finally, you connect the glow to real consequences: stomach bugs, colds, flu, and the impact on high-risk people and the business. Germs may be invisible, but the risk is not.

In 20–30 minutes, staff go from “I already know how to wash my hands” to “Okay, I can see I was missing half my hands”.

The bottom line for HR and managers

The HR dilemma in the Comstock’s article is very real – you can’t stand in the bathroom door policing people, and another funny sign won’t fix the underlying behaviour. If you genuinely want fewer sick days, better food safety and a cleaner culture, the path is:

Run a proper handwashing training session – ideally with a UV system like Glow 2 Show that makes invisible germs visible.
Give staff a chance to see their own habits in action – no shaming, just “here’s what’s actually happening on your hands”.
Use posters and policies as backup, not the main event – reminders that support skills, not replace them.

Staff already know they should wash their hands.

Show them why… and they’ll finally start doing it properly.