Harmful substances out
PFAS, pharmaceutical residues, heavy metals, chlorine and nitrate are removed. Microplastics remain in the filter.
Water in spring water quality
Not just filtered. Spring water quality.
Straight from the tap, for home, office and business.
Read more
The origin
How does the planet do it?
At the beginning was a question from Japanese basic research: How does nature regenerate water, and what gives a mountain spring its quality? This led to the PI technology. MAUNAWAI has been developing it for European tap water ever since. The goal: Tap water in spring water quality.
Family business since 1996. Filters from the pitcher to the whole house. Made in Germany & EU.Maria Knoch with her sons Daniel and Mathias Knoch
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JapanOver 20 years of basic researchProf. Shoi Yamashita and Dr. Shinji Makino develop the PI technology.
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1995The way to EuropeMaria Knoch brings the PI technology to Europe.
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1996MAUNAWAI is createdA family-owned company that advances technology for European tap water.
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TodayA system for every locationFrom the filter pitcher to the central filter at the house connection.
Water and health
Good water is a contribution to health
What we drink matters. And clean is not the same as natural.
60 %
An adult's body consists of approximately 60% water.
6 glasses of 0.25 l
1.5 liters
of fluid a day: the recommendation of the German Nutrition Society (DGE).
MAUNAWAI: clean and natural
Harmful substances out, minerals in. Water from a good source brings calcium and magnesium with it, is slightly alkaline and has preserved its structure. This quality is our goal.
MineralsTrace substances
CalciumMagnesiumTrace elements PFAS
Pharmaceutical residuesHeavy metalsChlorineMicroplastics
Sources: DGE · WHO. The WHO recommends enriching demineralized water with minerals again.
The difference
Clean and natural: we combine both
Minerals in
Calcium, magnesium and trace elements are retained and rebalanced with over 20 mineral ceramics. Unlike reverse osmosis.
As in nature
Tourmaline, noble shungite, mountain quartz and PI-ceramic replicate what water experiences on its way to the source. It is regenerated and acquires the structure of a mountain spring.
And furthermore: Some things the laboratory measures, others it does not. We separate the two cleanly. The laboratory values below are verified, dark field microscopy images show structures like spring water, the rest is experience from almost three decades. We make no healing promises.
Measurable
What independent laboratories confirm
Trace substances
Not detectable in MAUNAWAI water: heavy metals, around 130 active pharmaceutical ingredients, pesticides and bisphenol A.
One point per active pharmaceutical ingredient · Eurofins 2025 · tested on the filter jug
Material of the jug
10 days at 40 °C: 0.0 mg/dm² total migration from the jug body.
Fraunhofer IVV · EN 1186 · VO (EU) 10/2011
CE marking
Tested according to EN 17093:2018, monitored annually.
CEEN 17093:2018
Accredited testing laboratory
Accredited testing laboratory
One system for every location
Where would you like to filter?
From the filter jug to the central filter: four systems, one standard.
Next step
A 30-minute consultation
In person or online. Together we'll find the right solution for your location.
The line is currently busy
+49 3327-570-880Available again today from 9 o’clock. Or you can arrange for us to call you back right here.
We’ll give you a call
A quick, no-obligation chat: our water experts will discuss with you whether the system is right for you.
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