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Filtering flask ÖKO® instant filtration inspired by NASA technology for pure water everywhere.
Its L2 filter eliminates over 200 contaminants (PFAS, viruses, bacteria, pesticides, heavy metals, etc.) and improves water taste, odour and clarity.
Durable, economical and available in a range of formats, it's the ideal solution for everyday use, travel, sport or the great outdoors.
Filtering flask ÖKO® instant filtration inspired by NASA technology for pure water everywhere.
Its L2 filter eliminates over 200 contaminants (PFAS, viruses, bacteria, pesticides, heavy metals, etc.) and improves water taste, odour and clarity.
Durable, economical and available in a range of formats, it's the ideal solution for everyday use, travel, sport or the great outdoors.
Discover ÖKO® filtering water bottle a NASA-derived technology combining alumina nanofibers, antibacterial ions and activated charcoal. eliminate over 200 contaminants while preserving essential minerals. Water that's purer, longer-lasting and more enjoyable every day.



Analyzed by several laboratories COFRAC accredited standard ISO/IEC 17025.
More 200 reference compounds tested.
Full traceability and publicly available results.

Wide choice of colors.
Lightweight : 147 g (650 mL) / 172 g (1 L).
Carabiner and pipette guard included.
For use at work, school, travel, sport, on planes, boats...

A filter = 378 L (≈ 6 months at 2 L/day).
Extremely low filtration cost per liter.
Gourd body in PP5 and cap in food-grade tritan, 100 % recyclables.

OKO® simulator to know exactly when to change the filter, without guesswork.

Ideal for travelers, sports enthusiasts, families and adventurers.


The ÖKO® filter bottle offers one of the most advanced solutions for mobile water filtration. It integrates a L2 filter, based on declassified NASA technology, consisting of a mineral fiber with 1.25 micron pores, antibacterial ions and micro-powdered activated carbon.
Its membrane generates a positive charge field, allowing electro-adsorption, to enhance the elimination of many substances: PFAS, TFA, viruses, bacteria, chlorine, pesticides, drug residues, heavy metals.
Available in a range of sizes and colors, the ÖKO® water bottle is suitable for the whole family and allows you to enjoy pure, neutral-tasting water everywhere:


Before using the bottle for the first time, filter the first full fill (without drinking) to eliminate any residue from the manufacturing process.
And don't forget to use the ÖKO® water consumption simulator to find out exactly when to replace your filter.




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