Official Advisory · RIVM Netherlands
Do you live near Schiphol or Dordrecht?
Your tap water contains PFAS.
RIVM — the Dutch National Institute for Public Health — has published detailed maps of PFAS contamination across Zuid-Holland and Noord-Brabant. The sources are decades of AFFF firefighting foam at Schiphol airport and the Chemours/DuPont plant in Dordrecht, which discharged GenX and related compounds into the Merwede river for decades. Residents within the affected radius were officially advised not to eat home-grown vegetables or eggs.
🇨🇭 Swiss Made · 🎓 ETH Zurich · 🛡️ 10-year warranty
Source: RIVM · Schiphol & Chemours Dordrecht
RIVM and the Dutch Environment Agency (ILT) have documented PFAS contamination across Zuid-Holland and Noord-Brabant since the early 2010s. Public maps let residents check PFAS levels at their own address. Dordrecht and Sliedrecht residents were told not to consume home-grown produce or eggs. The Chemours plant was the subject of a landmark civil lawsuit by multiple municipalities. Official RIVM PFAS page →
The Solution: ETH Zurich BluAct Technology
At ETH Zurich, Prof. Raffaele Mezzenga developed a filtration technology based on whey-protein amyloid fibrils that selectively bind PFAS molecules — including hard-to-remove short-chain variants (PFBS, PFHxA, GenX). The technology was published in Nature Food and is exclusively licensed worldwide to Mam Nature Swiss.
The Essential Plus installs on your main water line and immediately protects every tap in the house — kitchen, shower, sinks, washing machine. Beneficial minerals (calcium, magnesium) are preserved.
What the system removes
ETH Zurich Filtration Performance Report (Dr. S. Bolisetty, 16 October 2025) · PFAS analysis per EPA 537M · ISO 13485:2016 certified manufacturing · Swiss Safety Center pressure tested to 16 bar
Pays for itself in 14.7 months
Example calculation for a family of four in the Netherlands
| One-time investment Essential Plus | €1,360 |
| Annual savings (bottled water, 4 people) | ≈ €1,110 |
| Payback period | 14.7 months |
| Annual running cost (cartridge) | €280 |
| Warranty | 10 years |
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Frequently Asked Questions
Does my tap water in Zuid-Holland contain PFAS?
RIVM has documented PFAS in groundwater and surface water across large parts of Zuid-Holland and Noord-Brabant, primarily from AFFF use at Schiphol and decades of GenX discharge from the Chemours plant in Dordrecht. You can check your exact address on the public RIVM PFAS map.
How much PFAS does the system remove?
The BluAct technology developed at ETH Zurich, based on whey-protein amyloid fibrils, removes up to 99.98% of PFAS compounds — including short-chain variants (PFBS, PFHxA, PFBA, GenX) that standard activated carbon filters often fail to retain.
Is installation complicated?
The Essential Plus is installed on your main water line and immediately protects every tap in the house. A licensed plumber typically completes the installation in 2–3 hours.
How long does the cartridge last?
One cartridge lasts approximately 12 months for an average family of four. Replacement cartridges cost €280. Compared to roughly €1,110/year for bottled water, you still save over €800/year.
What if I am not satisfied?
30-day return policy from delivery. You also receive a 10-year warranty on the housing and all non-wearing components.