Laboratory tests of the ÖKO filtering bottle

Conforming to the strict standards of the FDA and the NSF, the ÖKO bottle is not powerful only on paper: more than 140 water samples taken from international springs and lakes have demonstrated its filtration efficiency against micro-organisms and contaminants present in water.
Independent tests carried out in the Eurofins laboratory (tap water from Limal, sampling by Euraceta) and quality control reports Ahlstrom-Munksjö, certified NSF/ANSI 42 & 61.
Results at a glance
Removal rates measured in an independent laboratory
Chlorine
Viruses
E-Coli
Cysts
Bacteria
Endotoxins
Lead
Pesticides
Microplastics
ÖKO bottle specifications
Overall filtration — technical summary
| Technology | Electroadsorption and very fine-grained activated carbon |
|---|---|
| Flow rate | Up to 10× higher than equivalent filtration systems (2 L/min) |
| Material | Polypropylene (PP5) — free of BPA, phthalates and harmful agents |
| Chemical-free | Yes |
| Removes | Waterborne pathogens (99.99% of viruses, 99.9999% of bacteria, 99.9% of protozoan cysts): rotavirus, hepatitis A, norovirus, giardiasis, cryptosporidium, E. coli, cholera, salmonella, dysentery… |
| Filters | Particles (silt, microplastics…); activated carbon adsorbs chemicals, pesticides, heavy metals, flavors and odors |
| Filter lifespan | Up to 400 L (depending on water turbidity) |
| Weight | 147 g (650 mL bottle) / 172 g (1 L bottle) |
| Dimensions | H 23.3 cm (650 mL) / H 26.5 cm (1 L) |
| Included | Carabiner, pipette protector and ÖKO filter |
Test details
Contaminant by contaminant
Chlorine
95% removalLe chlore et ses sous-produits, responsables du goût et de l’odeur désagréables de l’eau du robinet, sont fortement réduits. Le filtre reste au-dessus de l’exigence NSF sur toute sa durée de vie.
Viruses
99.98% removalTestée selon les protocoles NSF/ANSI 42 & 61, la filtration retient la quasi-totalité des virus d’origine hydrique. Rapport de contrôle qualité Ahlstrom-Munksjö ci-dessous.

E-Coli
99.94% removalThe Escherichia coli bacterium, a key indicator of fecal water contamination, is almost completely removed throughout the life of the filter.
Cysts & parasites
99.9993% removalCysts and parasites (Giardia, Cryptosporidium…), resistant to chlorine, are almost entirely retained. Quality control report below.

Bacteria
99.9999% removalThe filtration removes almost all the bacteria present in the water, a protection level equivalent to 6 log. Quality control report below.

Endotoxins
83% retentionEndotoxins, fragments of bacterial walls that can cause inflammatory reactions, are retained at a level significantly higher than a reference Millipore filter tested under the same conditions.
Lead
95% removalLead, a toxic heavy metal often from old pipes, is strongly reduced. The curve shows the concentration retained by the filter as the treated volume increases (test at pH 6.5).
Pesticides & microplastics
Two major contaminants, strongly reduced
Pesticides & herbicides
Pesticides and herbicides present in tap water are strongly reduced thanks to the filter's activated carbon.
Microplastics
Microplastics, now present in most water sources, are almost entirely retained.
Chemical compounds — NSF 401 standard
Reduction validated at different test concentrations
| Compound | 50% | 100% | 150% | 180% | 200% |
|---|---|---|---|---|---|
| TCEP | Yes | Yes | No | No | No |
| TCPP | Yes | Yes | Yes | Yes | Yes |
| Bisphenol A | Yes | Yes | Yes | Yes | Yes |
| Noylphenol | Yes | Yes | Yes | Yes | Yes |
Compound reduction confirmed at the indicated test concentration.
Eurofins tests — before / after filtration
Independent Eurofins laboratory — tap water from Limal, sampling by Euraceta
Pesticides & metabolites
| Analyte | Before | After | Unit | Result |
|---|---|---|---|---|
| Desethyl-atrazine | 0,065 | < 0,05 | µg/l | Effective filtration (< LOQ*) |
| 2,6-Dichlorobenzamide | 0,038 | < 0,02 | µg/l | Effective filtration (< LOQ*) |
| Chlorthalonil M 12 | 0,083 | < 0,02 | µg/l | Effective filtration (< LOQ*) |
| Metolachlor ethanesulfonic acid | 0,088 | < 0,02 | µg/l | Effective filtration (< LOQ*) |
| Chloridazone-methyl-desphenyl | 0,18 | < 0,01 | µg/l | Effective filtration (< LOQ*) |
| Metazachlor ethanesulfonic acid | 0,022 | < 0,02 | µg/l | Effective filtration (< LOQ*) |
| Metolachlor NOA 413173 | 0,08 | < 0,02 | µg/l | Effective filtration (< LOQ*) |
Heavy metals
Tap water with a deliberate addition of 20 µg/l of 12 metals — Period: July 2023
| Analyte | Before | After | Unit | Criterion | Result |
|---|---|---|---|---|---|
| Iron | 0,02 | < 0,01 | mg/l | < 0,2 | Effective filtration (< LOQ*) |
| Manganese | 21,12 | 4,06 | µg/l | < 50 | Effective filtration (81%) |
| Cadmium | 16,79 | < 0,5 | µg/l | < 5 | Effective filtration (< LOQ*) |
| Copper | 88 | < 5 | µg/l | < 2000 | Effective filtration (< LOQ*) |
| Nickel | 20,5 | < 2 | µg/l | < 20 | Effective filtration (< LOQ*) |
| Lead | 20,5 | < 0,5 | µg/l | < 10 | Effective filtration (< LOQ*) |
| Nitrates | 31,1 | 31,5 | mg NO₃/l | < 50 | Minimal filtration |
| Silver | 18 | 19 | µg/l | < 100 | Minimal filtration |
| Chlorates | 150 | 150 | µg/l | — | Minimal filtration |
Fluoride
Tap water with a deliberate addition of 2 mg/l of fluoride — Period: August 2023
| Analyte | Before | After | Unit | Result |
|---|---|---|---|---|
| Fluorideide | 1,96 | < 0,1 | mg/l | Effective filtration (< LOQ*) |
Minimal filtration: 0% to 25%
Below is the table detailing the filtration capacities of the ÖKO bottle filter and a summary of the tests carried out at the manufacturer's request by independent laboratories.
Download the Eurofins report (PDF)
