The gap in Legionella control isn't the pipe. It's the shower head.
The gap in Legionella control isn't the pipe. It's the shower head.
Safe Shower seals the outlet the moment water stops, and disinfects the stagnant water — continuously.
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Why standing/stagnant water is the risk that we doesn't catch?
Why standing/stagnant water is the risk that we doesn't catch?
Once the shower stops running, residual chlorine dissipates and air re-enters the head — creating exactly the stagnant, low-disinfectant conditions the bacteria needs to establish.
RISK
Irregular use accelerates growth
Irregular use accelerates growth
Low-traffic fixtures — guest suites, unused patient rooms, seasonal facilities — give legionella days or weeks of stagnant water to colonize a biofilm, protected from disinfectants.
COST
Positive results are expensive
Positive results are expensive
A concentration above the permitted threshold triggers remediation, re-testing, documentation, and in some cases fixture closures — recurring costs on top of routine monitoring.
EXPOSURE
The route in is aerosol
The route in is aerosol
Legionnaires' disease is contracted by inhaling contaminated water droplets — which is exactly what a shower head produces, aimed directly at the user.
What happens inside the head?
What happens inside the head?
The patent covers a simple mechanical change with a continuous effect: keep the outlet sealed from air whenever water isn't flowing, so the standing water inside can be disinfected the entire time — not just during the seconds it's in transit.
1
Flow stops, the valve seals
Flow stops, the valve seals
A duckbill valve closes the outlet the moment water stops, blocking the air ingress that normally lets residual chlorine evaporate.
2
Standing water is irradiated
Standing water is irradiated
A UVC-LED unit inside the sealed chamber disinfects the trapped water continuously, targeting the exact volume where legionella would otherwise establish a biofilm.
3
The next use starts clean
The next use starts clean
When the valve reopens, water that was never allowed to sit unprotected flows through — instead of water that's been stagnant since the last use.
Built on published UV-C microbiology, not a marketing claim
Built on published UV-C microbiology, not a marketing claim
Point-of-use UV-C disinfection for legionella has been studied directly: published log-reduction thresholds for Legionella pneumophila fall in the range of roughly 0.9–3.1 mJ/cm², a dose small UV-C LEDs are capable of delivering at short range. Safe Shower's mechanical contribution is what makes that dose usable continuously — sealing the chamber so the LED is disinfecting standing water at all times, not only the moment water is in flow.
PATENT
WO2018116291 — Continuous disinfection of a sealed endpoint, applicable to shower heads, faucets, and other outlets.
We're candid with facility buyers: independent third-party log-reduction validation for the production unit is part of what a pilot is for. If your team requires data before specification, that's the right instinct — let's scope a pilot that produces it.
MECHANISM
Duckbill valve seal + in-chamber UVC-LED, active during standby
INSTALLATION
Standard hot/cold water line connection — no retrofit plumbing required
DISINFECTION CYCLE
Continuous while sealed; unit re-engages automatically on every stop-flow
TARGET ORGANISM
Legionella spp, addressed at the shower head rather than the central system
APPLICABLE SETTINGS
Hospitals, long-term care, hotels, resorts, and other high-occupancy water systems
PATENT STATUS
WO2018116291 Approved
Where standing water is a standing liability
Where standing water is a standing liability
Two settings carry the highest exposure — and the highest cost when a test comes back positive.
Hospitals & care facilities
Hospitals & care facilities
Protects immunocompromised patients at the fixture most directly aimed at them
Reduces the frequency of positive samples that trigger mandatory remediation
Supports infection-control documentation without adding staff workflow
Hotels & hospitality
Hotels & hospitality
Covers exactly the low-traffic suites and seasonal rooms where stagnation risk is highest
Reduces routine flushing and the water-heating cost that comes with it
Lowers exposure to guest-safety liability from an avoidable source
Start with a pilot, with a small order
Start with a pilot, with a small order
Tell us about your facility — fixture count, water system type, and current Legionella testing regime — and we'll scope a pilot installation.
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