of Dutch tap water contains traces of PFAS
Based on the Dutch measurements from 2023 cited here.
RIVM · view the sourceBackground
Why more and more households are filtering their tap water
Tap water meets the legal standards. Even so, more and more households put a filter behind it. This article walks through what the measurements show, what reverse osmosis does, and what a litre then costs.
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What is in your tap water?
Water utilities measure the legal parameters. What falls outside them comes from research — and that research finds traces.
Tap water comes from groundwater and surface water. Both are in contact with farming, industry and sewers. Water utilities take a great deal out, and what comes from the tap meets the standard the law sets.
That standard does not cover everything. For some of the substances researchers find, no drinking water limit exists yet. They are in the reports all the same.
Three groups that keep coming back in the reports
- PFAS — a group of substances that barely breaks down, hence "forever chemicals"
- Pharmaceutical residues — from sewers and farming
- Microplastics — found in tap water and in bottled water
What these figures do and do not say
What follows is measurements, not a verdict on what a substance does. Every figure has a source; they are collected on the sources page.
What is really in tap water?
140
different pharmaceutical residues found in drinking water sources
The study cited maps out substances in Dutch drinking water sources.
KWR · view the sourceMicroplastics
have been detected in both tap water and bottled water.
An international review; results vary by region and research method.
WHO · Microplastics in drinking-water (2019) See the full source listFigures can differ per region and research method.
See the full source list
Why reverse osmosis
A carbon filter tackles taste and smell. Reverse osmosis works on a different scale.
In reverse osmosis, water is pushed under pressure past a membrane that works at 0.0001 micron. Dissolved substances stay on one side, your drinking water comes out on the other. It is the same technique used to make drinking water on board ships.
And then the minerals go back in
Reverse osmosis leaves the water bare. That is why the Osmora follows the membrane with a remineralisation step that brings calcium and magnesium back. That is what you taste.
The membrane works at 0.0001 micron. Dissolved substances stay on one side, your drinking water comes out on the other. Osmora Premium filter specification
Why FluoFree
Dutch water technology, with components tested by NSF.
- NSF/ANSI-tested components: the RO membrane (58) and the carbon block (42)
- Hydrogen enrichment after filtration, in the same device
- Dutch water technology
- One filter change a year; nothing else to do
About the NSF test
NSF tested the RO membrane (NSF/ANSI 58) and the carbon block (NSF/ANSI 42) for material safety. Both passed. This is a component listing covering those two parts.
Remineralisation and hydrogen enrichment sit in the same device. There is nothing to buy on top and nothing to connect that is not already inside.
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Drink truly clean water from €0,14
Per litre, made up of the filter set and the electricity it uses. No lugging bottles, no deposits.
Filter set €99,00 / 2000 L
Electricity per litre €0,09
Per litre €0,14
Electricity is our own assumption of €0.09 per litre, not a measured figure; it matches the default budget of €100 a year in the calculator below. The filter price comes straight from the shop.
Work it out yourself.
1,5 litres per person per day
With 2 people together 3 litres a day.
More assumptions
Brand-name bottles per year €821,25
FluoFree per year €199,00
Cost in the first year €277
From year 2 you save €622
1095 L per year · 1 filter set(s) at 99.0 included.
Three models, one technique
Standaard, Premium or Pro?
| Feature | Standaard €397,00 | Premium €899,00Most chosen | Pro €2.497,00 |
|---|---|---|---|
| Reverse osmosis | yes | yes | yes |
| Hydrogen enrichment | no | yes | yes |
| Mineralisation after filtration | no | yes | no |
| Cold and hot from one device | no | yes | yes |
| No installation needed | no | yes | no |
| Temperature settings | 5 settings up to 95 °C | 6 settings, 5–95 °C | 2 settings: cold and hot |
| Placement | On the worktop | On the worktop | Floor-standing model |
| Aimed at businesses | no | no | yes |
Per model, based on its own product information. If a property is not stated there, we show a dash.
Ready to start?
The Osmora Premium is on your counter within ten minutes. No drilling; connecting it to the tap is enough.
- 14 days to change your mind
- Free shipping, even for a single device
- First filter set included