Laboratory tests

Introduction to laboratory testing

They are numerous and come from several sources: manufacturers, independents and other brands using the same filter.
All obtain the same results regarding the efficiency of this filter, as reported by NASA (2002).

At ÖKO EUROPE, we called on the Institut Pasteur de Lille (viruses), Eurofins-Euraceta (tap water contaminants) and IANESCO (spiking of nearly 200 contaminants before filtration).

The result?

ÖKO is very efficient.

Many different water sources around the world

A laboratory will test a single type of water and a defined variety of contaminants. The more molecules are tested, the more effective the filter proves to be. At ÖKO EUROPE, we have invested in a study that tests nearly 200 of them, in order to be as comprehensive as possible.

Discover technology

Tests carried out by the manufacturer & independent third parties

Virus

99,982%

Viruses

Viruses are the smallest forms of micro-organisms capable of causing disease, particularly those of faecal origin that are infectious to humans through waterborne transmission.

Some examples: Poliovirus, Norovirus, Rotavirus

Focus on Norovirus

The Norovirus genus, ranging in size from 0.027 to 0.038 µm, groups together infectious agents responsible for the most frequent form of acute gastroenteritis in humans of all ages.

Focus on Rotavirus

Rotavirus (0.070 µm) is one of the main causes of acute viral gastroenteritis worldwide, particularly in infants and young children. It is transmitted mainly by the fecal-oral route, via contaminated water or food.

It is highly contagious and persists in the water for several weeks.

Focus on Bacteriophage MS2

Bacteriophages use bacteria as hosts for replication. Bacteriophage MS2 is a small virus that particularly infects E. coli. It has an RNA genome. Because of its small size and simplicity, it is often used in scientific research and to evaluate disinfection methods in the water industry.

Test conducted by

Lille Pasteur Institute (April 2025)

Test conditions

Water artificially contaminated with Norovirus murine strain S99 Berlin (MNV-1) with a concentration of 10⁵ TCID50/mL infectious doses.

Conclusion

ÖKO filter bottles filter out an average of 99.982% of murine Norovirus (MNV-1) from contaminated water.

Test conducted by

Lille Pasteur Institute (April 2025)

Test conditions

Water artificially contaminated with simian Rotavirus strain SA-11 with a concentration of 10⁵ TCID50/mL infectious doses.

Bacteria retention

ÖKO water bottles filter out an average of 99.992% of simian Rotavirus (SA-11) from contaminated water.

Test conducted by

Lille Pasteur Institute (April 2025)

Test conditions

Water artificially contaminated with Norovirus murine strain S99 Berlin (MNV-1) with a concentration of 10⁵ TCID50/mL infectious doses.

Conclusion

ÖKO filter bottles filter out an average of 99.982% of murine Norovirus (MNV-1) from contaminated water.

Test conducted by

Lille Pasteur Institute (April 2025)

Test conditions

Water artificially contaminated with simian Rotavirus strain SA-11 with a concentration of 10⁵ TCID50/mL infectious doses.

Bacteria retention

ÖKO water bottles filter out an average of 99.992% of simian Rotavirus (SA-11) from contaminated water.

Bacteria

99,9993%

Bacteria

Bacteria are generally single-celled micro-organisms that can cause health problems in humans, animals or plants.

Focus on Raoultella terrigena

Raoultella terrigena is a gram-negative bacterium belonging to the Enterobacteriaceae family. It is generally associated with soil and water environments, but has also been identified in the digestive systems of various animals.

The presence of R. terrigena in water can be the result of contamination by sewage or animal waste.

Focus on Salmonella

Salmonella is a genus of pathogenic bacteria well known for causing gastrointestinal infections (salmonellosis) in humans and animals. It is one of the main agents responsible for collective food poisoning outbreaks (CFTI) worldwide. It can survive in water for several weeks.

gram negative legionella pneumophila bacterium

Test conducted by

Lille Pasteur Institute (April 2025)

Test conditions

Water artificially contaminated with Salmonella enterica subsp. enterica Typhimurium CIP 58.58 strain with a concentration of 10⁵ CFU/mL infectious doses.

Conclusion

ÖKO filter bottles filter out an average of 99.9993% of Salmonella from contaminated water.

Test conducted by

Ahlstrom Munksjö

Test conditions

Water contaminated with :

- Bacteria (Raoultella Terrigena) influent concentration 105 or 106 per ml (influent = untreated raw water)

COA - Certificate of Analysis

Test conducted by

Biological Consulting Services

Sample used

Flat sheet with a surface area of 63.6 cm².

Test conditions

The water was contaminated with :

- Bacteria (Raoultella Terrigena) influent concentration 105 (influent = untreated raw water)

Bacteria retention

Cysts & parasites

99,9993%

Focus on Cryptosporidium

The cryptosporidium parasite causes symptoms akin to severe gastroenteritis. It can cause death (rarely in humans, but frequently in calves. It is the leading cause of death in calves under one month of age).

Focus on Giardiasis (Giardia lamblia)

Often referred to as "beaver fever", giardiasis is a disease of the digestive system.

Signs of this disease include diarrhea, abdominal pain, bloating, stomach upset, feelings of fatigue and weight loss.

What is a 3-micron pearl substitute?

This is a small spherical particle, about 3 micrometers in diameter, which is used to simulate certain micro-organisms or particles in water of the same size.

Test conducted by

Ahlstrom Munksjö

Test conditions

Water contaminated with :

- Cyst (3-micron pearl substitute) influent concentration 105 or 106 per ml (influent = untreated raw water)

COA - Certificate of Analysis

E. coli

99,94%

Focus on E. Coli

Escherichia coli is a bacterium found in the intestines of humans and many animals. Most strains are harmless and form part of the normal intestinal flora. However, some strains can cause illness in humans, ranging from simple intestinal disorders (diarrhea, abdominal cramps) to more serious infections such as urinary tract infections, meningitis, hemolytic uremic syndrome (HUS) or life-threatening kidney disease.

Test conducted by

Ahlstrom Munksjö

Flow

40 litres/m²/min

Test conditions

- Water: Ringer

- Bacteria - E. Coli

- Internal protocol used: TM 140

- Temperature 22˚C ± 1˚C

- PH 7.75 ± 0.25

- Soaking: a few seconds with DI water (deionized water)

- Analysis: ATP metry (molecular biology technique based on the principle of bioluminescence, which measures the quantity of ATP in a sample).

Retention of E. Coli

Endotoxins

83%

What are endotoxins?

Endotoxins or Lipopolysaccharides (LPS) are large molecules found in the outer membrane of gram-negative bacteria that can cause severe immune reactions in people, such as :

* Temperature rise

* Increased breathing

* Lower blood pressure

* Endotoxin shock (which can be fatal)

Test conducted by

Ahlstrom Munksjö

Endotoxin retention - Case study

Results

By the end of the study, each disc had been subjected to 3.85 x 106 EU. The Disruptor range removed a higher percentage of endotoxins than Millipore's MF filters.

Despite the smaller pore size of the MF filters, the Disruptor removed more endotoxins. This shows that loading is more effective at retaining endotoxins than pore size.

Test conducted by

Northview Laboratories

Endotoxin retention - Third-party test

Chlorine

95%

Focus on chlorine

Chlorine and chloramine are the main disinfectants used in public water systems.

It is widely criticized for its real health hazards and for altering the taste of water (bleach taste).

NSF requirements

* NSF 42 requires a 50% reduction in chlorine.

* Disruptor™ PAC is above 50% retention up to 28,000 L/m

Test conducted by

Ahlstrom Munksjö

Sample used

Flat sheet with a surface area of 3.9 cm².

Flow

15.9 ml/min

Test conditions

Tap water from Pont Eveque-PEV :

- Temperature 20 ˚C

- TDS* 310 mg/L

- pH 7.4

- Initial chlorine concentration of 2 ppm*.

- Concentration range 0 to 2 ppm

Chlorine retention

Heavy metals & lead

< LOQ

Health effects of lead

The widespread use of lead has resulted in widespread environmental contamination. At high levels of exposure (or long-term exposure), it attacks the brain and central nervous system, leading to a range of diseases and disorders.

Health effects of cadmium

Cadmium is a toxic heavy metal that occurs naturally in the environment, but is widely distributed by human activities such as industry, fossil fuel combustion and the use of phosphate fertilizers. It can contaminate water, soil and food. Chronic exposure to cadmium, even in low doses, can cause severe kidney damage, bone demineralization (osteoporosis, fractures), and increases the risk of cancer, particularly of the kidney and respiratory tract. It is classified as a known human carcinogen (IARC Group 1).

Test conducted by

EUROFINS | EURACETA (Laboratoire d'Analyses et de Contrôles Environnementaux, Toxicologiques & Agro-alimentaires)

Test conditions

Tap water with voluntary addition of 20 µg/l of 12 metals (cf. Sb, Se, As, Cr,Cd,Pb, Ni, Mn, Fe,Cu, Ag & Zn)

Period

July 2023

Test conducted by

The Poitiers-based Ianesco laboratory specializes in water, air and materials analysis.

Test conditions

Solution doped with 420 µg/l Aluminum and 3.7 µg/l Mercury

Period

March 2025

Results BEFORE and AFTER filtration

Element

Before

After

Results

Iron

0.02 mg/l

< 0.01 mg/l

< LOQ *

Manganese

21.12 μg/l

4.06 μg/l

> 80%

Cadmium

16.79 μg/l

< 0.5 μg/l

< LOQ *

Copper

88 μg/l

< 5 μg/l

< LOQ *

Nickel

20.5 μg/l

< 2 μg/l

< LOQ *

Lead

20.5 μg/l

< 0.5 μg/l

< LOQ *

Nitrates

31.1 mg NO3/l

31.5 mg NO3/l

Minimal

Silver

18 μg/l

19 μg/l

Minimal

Chlorates

150 μg/l

Minimal

Aluminum

88 μg/l

< 20 μg/l

< LOQ *

Mercure

88 μg/l

< 0.08 μg/l

< LOQ *

* < LOQ = No more visible traces

Vinyl chloride monomer (VCM)

< LOQ

Vinyl Chloride Monomer (VCM) is an industrial gas used in the manufacture of PVC, notably in pipes. Invisible and odorless, it has been classified as a proven carcinogen since 1987 (IARC Group 1), and is responsible for liver cancer.

PVC pipes installed before 1980 can release VCM into the water, especially in the event of stagnation or low flow.

The regulatory limit in drinking water is set at 0.5 µg/L. Despite this, numerous exceedances have been observed in France since the introduction of monitoring in 2007. Approximately 15-30% of the French network is affected, i.e. up to 270,000 km of pipes at risk.

The health authorities recognize that the only way to permanently eliminate the risk is to refurbish the networks, but the work is costly, and the information provided to users lacks transparency, as several journalistic investigations have revealed (Envoyé Spécial, France 3, Le Monde, Radio France).

Test conducted by

The Poitiers-based Ianesco laboratory specializes in water, air and materials analysis.

Test conditions

Solution spiked with 0.22 µg/l vinyl chloride

Period

March 2025

Results BEFORE and AFTER filtration

Element

Before

After

Results

CVM

0.22 μg/l

<0,10μg/l

< LOQ *

* < LOQ = No more visible traces

Fluorine

< LOQ

Test conducted by

EUROFINS | EURACETA (Laboratoire d'Analyses et de Contrôles Environnementaux, Toxicologiques & Agro-alimentaires)

Test conditions

Tap water with voluntary addition of 2 mg/l Fluoride

Period

August 2023

Fluorine information

Fluoride is one of ten major chemicals posing a public health problem, alongside asbestos and arsenic. An EU directive has set the maximum permissible level of fluoride in water at 1.5 mg/l in Europe.

Some bottled waters are also not far from this threshold.

However, a 5-year-old child should not exceed the threshold of 1 mg/day, or risk developing dental fluorosis, as is the case for 2% of children in France.

See our dedicated blog post here.

Results BEFORE and AFTER filtration

Medicines

95%

NSF 401 certification

NSF 401 certification for filters covers "accidental contaminants and emerging compounds".

This means that the NSF Safety and Public Health Organization has verified that the Disruptor™ filter meets their high standards for the reduction of emerging compounds and incidental contaminants (such as pesticides, herbicides, drugs and detergents) through a variety of tests carried out by NSF experts.

Test conducted by

NSF International Laboratories

Standard applied

NSF 401

Test conditions

Tests based on estimated service life of 1000 litres/ft2 (ft2 = square feet) corresponding to 100% in tables

Prescription drugs

Phenytoin : an anti-epileptic drug

Atenolol : a beta-blocking drug

Carbamazepine : an anticonvulsant and mood stabilizer

Trimethoprim : an antibiotic drug

Estrone : a prescription contraceptive drug

Over-the-counter medicines

Ibuprofen : an over-the-counter analgesic and anti-inflammatory drug

Naproxen : an over-the-counter analgesic and anti-inflammatory drug

DEET (N,N-Diethyl-meta-toluamide) : a pesticide and common active ingredient in insect repellents

Metolachlor : an organic compound widely used as a herbicide

Linuron : a herbicide often used for grass and weed control.

Chemical compounds

NSF 401

NSF 401 certification

NSF 401 certification for filters covers "accidental contaminants and emerging compounds".

Test conducted by

NSF International Laboratories

Standard applied

NSF 401

Test conditions

Tests based on estimated service life of 1000 litres/ft2 (ft2 = square feet) corresponding to 100% in tables

Chemical compounds

TCEP : a chemical compound used as a flame retardant, plasticizer and viscosity regulator in various types of polymers, including polyurethanes, polyester resins and polyacrylates.

TCPP : a chemical compound used as a flame retardant.

BPA (Bisphenol A): a chemical compound used as a plasticizer. It is produced on an industrial scale by the condensation of phenol and acetone. Worldwide production is expected to reach 10 million tonnes by 2022.

Nonylphenol : a collection of compounds often used as precursors for commercial detergents.

Other products

95%

Focus on micro-contaminants

Various micro-contaminants are now detected in many wastewaters and some drinking water sources.

Although the dangers posed by these contaminants to humans and the environment are not well understood, the reduction or elimination of these compounds is a concern for many organizations and health authorities.

Test conducted by

NSF International Laboratories

Elimination of Penicilinne G

Conclusion on Penicilinne G

Penicillin G was used as a representative antibiotic for the tests.

It was first studied using a 2 mg/l challenge solution. This graph shows that all the antibiotic was removed from 13 liters of water. At more typical concentrations in the 2 micrograms per liter range, 0.093 m² of Disruptor could theoretically treat over 900,000 liters of water if it were free of other contaminants.

Elimination of flumequine

Conclusion on flumequine

Flumequine is a chemotherapeutic antibiotic implicated in tendon rupture, DNA damage and anaphylactic shock. It has been withdrawn from the market, but is representative of the flumequine class of drugs. Data show complete elimination from 3 liters of water at a concentration of 10 mg/l. At more typical concentrations in the 2 micrograms per liter range, one square foot of Disruptor could theoretically treat over a million liters of water if free of other contaminants.

PCB disposal

Conclusion on PCBs

Polychlorinated biphenyls (PCBs) are man-made organic chemicals known for their toxic and carcinogenic effects. Independent tests have shown that Disruptor is effective in removing PCBs from water, as shown in the graph above.

Pesticides and metabolites

< LOQ

Description

Pesticides and herbicides are widely used in agriculture and gardening to increase productivity and prevent pest damage.

These chemicals can have harmful effects on the environment and human health. They can leach into surface water and groundwater through runoff or infiltration, contaminating drinking water sources.

Test conducted by

The Poitiers-based Ianesco laboratory specializes in water, air and materials analysis.

Test conditions

Doped solution

Period

March 2025

Results BEFORE and AFTER filtration

Element

Before

After

Results

2-hydroxyatrazine

0.46 μg/l

< 0.02 μg/l

< LOQ *

2-hydroxysimazine

0.42 μg/l

< 0.02 μg/l

< LOQ *

2-hydroxyterbuthylazine

0.41 μg/l

< 0.02 μg/l

< LOQ *

Améthryne

0.45 μg/l

< 0.02 μg/l

< LOQ *

Atrazine desethyl-2-hydroxy

0.6 μg/l

< 0.02 μg/l

< LOQ *

Atrazine

0.48 μg/l

< 0.02 μg/l

< LOQ *

Desethylatrazine

0.54 μg/l

< 0.02 μg/l

< LOQ *

Desethylsimazine

0.36 μg/l

< 0.02 μg/l

< LOQ *

Desethylterbuthylazine

0.44 μg/l

< 0.02 μg/l

< LOQ *

Metribuzin

0.31 μg/l

< 0.02 μg/l

< LOQ *

Promethryne

0.49 μg/l

< 0.02 μg/l

< LOQ *

Simazine

0.46 μg/l

< 0.02 μg/l

< LOQ *

Terbuthryne

0.48 μg/l

< 0.02 μg/l

< LOQ *

Flutriafol

0.44 μg/l

< 0.02 μg/l

< LOQ *

Terbumeton-desethyl

0.58 μg/l

< 0.02 μg/l

< LOQ *

Thiencarbazone-methyl

0.72 μg/l

< 0.02 μg/l

< LOQ *

Acetochlor

0.42 μg/l

< 0.02 μg/l

< LOQ *

Acetochlor ESA

0.54 μg/l

< 0.04 μg/l

< LOQ *

Flufenacet ESA

0.48 μg/l

< 0.02 μg/l

< LOQ *

Acetochlor OXA

0.81 μg/l

< 0.02 μg/l

< LOQ *

Alachlor

0.38 μg/l

< 0.02 μg/l

< LOQ *

Spirotetramat

0.55 μg/l

< 0.02 μg/l

< LOQ *

Alachlor ESA

0.75 μg/l

< 0.05 μg/l

< LOQ *

Alachlor OXA

0.63 μg/l

< 0.02 μg/l

< LOQ *

Beflubutamide

0.5 μg/l

< 0.02 μg/l

< LOQ *

Carboxine

0.46 μg/l

< 0.02 μg/l

< LOQ *

Dimethachlor CGA

0.3 μg/l

< 0.02 μg/l

< LOQ *

Dimethachlor ESA

0.32 μg/l

< 0.04 μg/l

< LOQ *

Dimethachlor OXA

0.92 μg/l

< 0.04 μg/l

< LOQ *

Fenhexamid

0.41 μg/l

< 0.02 μg/l

< LOQ *

Dimethenamide

0.35 μg/l

< 0.02 μg/l

< LOQ *

Isoxaben

0.46 μg/l

< 0.02 μg/l

< LOQ *

Mandipropamide

0.38 μg/l

< 0.02 μg/l

< LOQ *

Metazachlor

0.41 μg/l

< 0.02 μg/l

< LOQ *

Metazachlor ESA

0.46 μg/l

< 0.02 μg/l

< LOQ *

Metazachlor OXA

0.57 μg/l

< 0.02 μg/l

< LOQ *

Metolachlor (+ S-metolachlor)

0.37 μg/l

< 0.02 μg/l

< LOQ *

Metolachlor (+ S-) ESA

0.73 μg/l

< 0.02 μg/l

< LOQ *

Metolachlor NOA

0.85 μg/l

< 0.04 μg/l

< LOQ *

Metolachlor (+ S-) OXA

1 μg/l

< 0.02 μg/l

< LOQ *

Oxadixyl

0.42 μg/l

< 0.02 μg/l

< LOQ *

Phoxime

0.47 μg/l

< 0.02 μg/l

< LOQ *

Chlorothalonil SA

0.42 μg/l

< 0.02 μg/l

< LOQ *

Chlorothalonil R471811

0.69 μg/l

< 0.04 μg/l

< LOQ *

1-(3,4-dichlorophenyl) urea

0.4 μg/l

< 0.02 μg/l

< LOQ *

1-(3,4-d), 3-methylurea

0.43 μg/l

< 0.02 μg/l

< LOQ *

1-(3-chloro, 4-methylp) urea

0.43 μg/l

< 0.02 μg/l

< LOQ *

Desmethyl isoproturon

0.38 μg/l

< 0.02 μg/l

< LOQ *

1-(4-isopropylp), 3-methylurea

0.43 μg/l

< 0.02 μg/l

< LOQ *

Chlortoluron

0.35 μg/l

< 0.02 μg/l

< LOQ *

Diuron

0.41 μg/l

< 0.02 μg/l

< LOQ *

Isoproturon

0.35 μg/l

< 0.02 μg/l

< LOQ *

Linuron

0.46 μg/l

< 0.02 μg/l

< LOQ *

Methabenzthiazuron

0.37 μg/l

< 0.02 μg/l

< LOQ *

Metobromuron

0.46 μg/l

< 0.02 μg/l

< LOQ *

Metoxuron

0.43 μg/l

< 0.02 μg/l

< LOQ *

Monolinuron

0.43 μg/l

< 0.02 μg/l

< LOQ *

Monuron

0.45 μg/l

< 0.02 μg/l

< LOQ *

Neburon

0.36 μg/l

< 0.02 μg/l

< LOQ *

Siduron

0.42 μg/l

< 0.02 μg/l

< LOQ *

Tebuthiuron

0.46 μg/l

< 0.02 μg/l

< LOQ *

3hydroxycarbofuran

0.51 μg/l

< 0.02 μg/l

< LOQ *

Carbendazim

0.37 μg/l

< 0.02 μg/l

< LOQ *

Carbetamide

0.43 μg/l

< 0.02 μg/l

< LOQ *

Methiocarb

0.45 μg/l

< 0.02 μg/l

< LOQ *

Methomyl

0.57 μg/l

< 0.02 μg/l

< LOQ *

Pirimicarb

0.2 μg/l

< 0.02 μg/l

< LOQ *

Propamocarb

0.21 μg/l

< 0.02 μg/l

< LOQ *

Thiodicarb

0.67 μg/l

< 0.02 μg/l

< LOQ *

Thiophanate

0.36 μg/l

< 0.1 μg/l

< LOQ *

Flazasulfuron

<0,020 μg/l

< 0.02 μg/l

< LOQ *

Flupyrsulfuron

<0,020 μg/l

< 0.02 μg/l

< LOQ *

Foramsulfuron

0.56 μg/l

< 0.02 μg/l

< LOQ *

Iodosulfuron

0.58 μg/l

< 0.02 μg/l

< LOQ *

Mesosulfuron

0.71 μg/l

< 0.02 μg/l

< LOQ *

Metsulfuron

0.58 μg/l

< 0.02 μg/l

< LOQ *

Nicosulfuron

0.097 μg/l

< 0.02 μg/l

< LOQ *

Prosulfuron

0.68 μg/l

< 0.02 μg/l

< LOQ *

Rimsulfuron

0.026 μg/l

< 0.02 μg/l

< LOQ *

Sulfosulfuron

0.42 μg/l

< 0.02 μg/l

< LOQ *

+ 58 others

24.637 μg/l

< 0.1 μg/l

< LOQ *

TOTAL 138 PESTICIDES

60.54 μg/l

< 0.1 μg/l

< LOQ *

See full IANESCO test at bottom of page

* < LOQ = No more visible traces

Test conducted by

EUROFINS | EURACETA (Laboratoire d'Analyses et de Contrôles Environnementaux, Toxicologiques & Agro-alimentaires)

Test conditions

Tap water from Limal - Samples taken by Euraceta

Period

July 2023

Information on contaminants detected

Most of the contaminants below are derived from the chemical degradation of herbicides: Atrazine, dichlobenil, chlorothalonil, S-metolachlor and chloridazone, most of which are harmful or very harmful to health and are banned or in the process of being banned.

See our dedicated blog post here.

Results BEFORE and AFTER filtration

Contaminants in tap water before and after filtration

Test conducted by

NSF International Laboratories

NSF/ANSI 244 results

- Herbicide 2,4 -D eliminated at more than 95% with an initial influent concentration of 70 μg +/-10% /L ;

- Atrazine herbicide eliminated over 95% with an initial influent concentration of 3 μg +/-10% /L ;

- 9 additional herbicides more than 95% eliminated according to the U.S. Environmental Protection Agency;

- Pesticide Chlordane more than 95% eliminated with an initial influent concentration of 2 μg +/-10% /L;

- Pesticide Heptachlor eliminated at more than 95% with an initial influent concentration of 0.4 μg +/-10% /L ;

- Lindane pesticide eliminated at more than 95% with an initial influent concentration of 0.2 μg +/-10% /L ;

- 11 additional pesticides more than 95% eliminated, according to the US Environmental Protection Agency;

Chlordecone

< LOQ

Description

Chlordecone is an organochlorine pesticide used on a massive scale in the French West Indies between 1970 and 1990, particularly in banana plantations to control an insect pest. Highly toxic and extremely persistent in the environment, it still contaminates soils, rivers and certain local foodstuffs (root vegetables, fish, shellfish, etc.).

Classified as an endocrine disruptor and possible carcinogen, it is recognized for its harmful effects on health, even at low doses and over the long term. Although banned since 1993, its long-term presence makes it a major public health and environmental justice issue in the French West Indies.

Test conducted by

Institut Pasteur de la Guadeloupe

Results BEFORE and AFTER filtration

Before filtration 12.40 μg/L (spiked water)

Après filtration le résultat est inférieur à la limite de quantification (<0,01 μg/L)

Test conducted by

Institut Pasteur de la Guadeloupe

Results BEFORE and AFTER filtration

Before filtration 6.24 μg/L (spiked water)

Après filtration le résultat est inférieur à la limite de quantification (<0,01 μg/L)

Plastics

> 99%

Description

By its very nature, plastic naturally breaks down into tiny plastic particles.

Read our article on the subject: here

Test conducted by

NSF International Laboratories

NSF/ANSI 244 results

Over 99% elimination at an initial concentration of 100 parts/L, each larger than 2 μg

Perfluorinated (PFAS)

99,98%

Information on perfluorinated compounds (PFAS)

Perfluorochemicals, also known as per- and polyfluoroalkyl substances (PFAS), are a family of chemical compounds widely used for their unique properties, such as resistance to water, stains and grease. They are often found in a variety of everyday products, including non-stick coatings, textiles, food packaging and some fire-fighting equipment. However, their exceptional chemical stability, which gives them their usefulness, also makes these substances particularly persistent in the environment and in living organisms, leading to growing concerns about their potential impact on human health and ecology.

Test conducted by

EUROFINS | EURACETA (Laboratoire d'Analyses et de Contrôles Environnementaux, Toxicologiques & Agro-alimentaires)

Test conditions

Tap water

Period

December 2023

Test conducted by

The Poitiers-based Ianesco laboratory specializes in water, air and materials analysis.

Test conditions

Doped solution

Period

March 2025

First results BEFORE and AFTER filtration

Analysis 2023 filtration of perfluorinated PFAs

Latest results BEFORE and AFTER filtration

Element

Before

After

Results

82-FTOH

0.12 μg/l

< 0.10 μg/l

< LOQ *

62-FTOH

0.056 μg/l

< 0.05 μg/l

< LOQ *

ADONA

0.52 μg/l

< 0.001 μg/l

< LOQ *

C6O4

0.5 μg/l

< 0.005 μg/l

< LOQ *

GenX

0.25 μg/l

< 0.01 μg/l

< LOQ *

H4PFOS

0.39 μg/l

< 0.001 μg/l

< LOQ *

PFBA

0.56 μg/l

0.0017 μg/l

99,7 %

PFBs

0.59 μg/l

< 0.001 μg/l

< LOQ *

PFDA

0.59 μg/l

<0,001 μg/l

< LOQ *

PFDoDA

0.31 μg/l

< 0.005 μg/l

< LOQ *

PFDoDS

0.3 μg/l

< 0.005 μg/l

< LOQ *

PFDS

0.56 μg/l

< 0.005 μg/l

< LOQ *

PFHpA

0.6 μg/l

< 0.001 μg/l

< LOQ *

PFHpS

0.5 μg/l

< 0.005 μg/l

< LOQ *

PFHxA

0.65 μg/l

< 0.001 μg/l

< LOQ *

PFHxDA

0.5 μg/l

< 0.01 μg/l

< LOQ *

PFHxS

0.53 μg/l

< 0.001 μg/l

< LOQ *

PFNA

0.6 μg/l

< 0.001 μg/l

< LOQ *

PFNS

0.43 μg/l

< 0.005 μg/l

< LOQ *

PFOA

0.55 μg/l

< 0.001 μg/l

< LOQ *

PFODA

0.17 μg/l

< 0.01 μg/l

< LOQ *

PFOS

0.62 μg/l

< 0.001 μg/l

< LOQ *

PFPeA

0.66 μg/l

< 0.001 μg/l

< LOQ *

PFPeS

0.61 μg/l

< 0.001 μg/l

< LOQ *

PFTeDA

0.43 μg/l

< 0.005 μg/l

< LOQ *

PFTrDA

0.72 μg/l

< 0.01 μg/l

< LOQ *

PFTriS/DS

0.31 μg/l

< 0.01 μg/l

< LOQ *

PFUDS

0.79 μg/l

< 0.01 μg/l

< LOQ *

PFUnDA

0.44 μg/l

< 0.005 μg/l

< LOQ *

Sum of 20 perfluorinated compounds (PFAS)

10.92 μg/l

0.0017 μg/l

99,98%

* < LOQ = No more visible traces

TFA

< LOQ

Trifluoroacetic acid (TFA)

TFA (trifluoroacetic acid) is a by-product of PFAS, and is derived in particular from the degradation of certain pesticides such as flufenacet. Highly persistent in the environment, it is found in groundwater, tap water and even bottled water.

It is classified as toxic for reproduction and raises real health concerns, especially as it is not yet regulated in France, despite its widespread presence.

Test conducted by

The Poitiers-based Ianesco laboratory specializes in water, air and materials analysis.

Test conditions

Doped solution

Period

March 2025

Results BEFORE and AFTER filtration

Element

Before

After

Results

TFA

0.22 μg/l

< 0.05 μg/l

< LOQ *

* < LOQ = No more visible traces

Equipment

In concrete terms, what does it mean to say that the filter retains 99.9993% of bacteria?

Imagine 1 million bacteria in a liter of dirty water.

If the filter retains 99.9993% of them, it will only let 7 through.

Are 7 bacteria dangerous to your health?

The human body is used to dealing with small quantities of bacteria every day.
The minimum infectious dose (the number of bacteria needed to become ill) is often well over 7 bacteria.
👉 For salmonella, it takes around 100,000 bacteria to risk infection in a healthy adult.

DISCLAIMER about laboratory tests

The laboratory is committed to the water and contaminants it tests.

No serious laboratory is going to commit to all molecules that have not been tested by them.

The laboratory will therefore select families and assume filtered , but without any real "written" guarantee.

At ÖKO EUROPE, we've chosen to test as many as possible

Recommendations for choosing an effective and reliable filter:

Always ask to see the original laboratory tests

Carried out by entities that possess all ministerial accreditations in the field.

Always be careful & responsible when choosing the water you filter.

(Don't look for dubious water if you have the choice, and tap water or the clearest, most common water possible).

(A water bottle is a mobile product and anyone can potentially filter anything)

How can you trust ÖKO if you don't?

Thanks to our ever-growing clientele who use it on a daily basis. And thanks to their real, verified opinions.
10992 avis
In 2023 , ÖKO EUROPE re-tested certain contaminants that are unfortunately increasingly present in tap water.
such as heavy metals, PFAS, pesticides and fluorides via the independent Franco-Belgian laboratory EUROFINS-EURACETA, with the aim of confirming (or invalidating) previous tests.

=> Tests confirm previous results: ÖKO filters efficiently.
In 2025, ÖKO EUROPE is launching a new testing campaign in partnership with the Pasteur Institute of Lille (and Guadeloupe for Chlordecone) and the independent French accredited laboratory IANESCO, with the aim of getting everyone on the same page and covering an even wider spectrum of contaminants that can very potentially be found today in our tap water.

Lead , cadmium, E.Coli, PFAS, TFA, CVM, Chlorothalonil, Chlordecone and the list goes on....

The results are clear:

ÖKO provides high-performance viral and bacterial filtration that far exceeds market standards:

👉 Rotavirus filtration efficiency: 99.992%.
👉 Norovirus filtration efficiency: 99.982%.
👉 Legionella filtration efficiency: 99.999%.

ÖKO ensures exceptional filtration of emerging contaminants:

👉 No visible traces of TFAS and PFAS after filtration
👉 No visible traces of Chlordecone after filtration
👉 No visible traces of vinyl chloride (VCM) after filtration
👉 No visible traces of Chlorothalonil after filtration
The filtration technology was created in 2002 by NASA , and since 2013, Ahlstrom Munksjo has been producing this powerful filter (leader in its field) through SPINOFF (transfer of laboratory technology for consumer use).
If you know a user ÖKOask him to :

- Simply let you taste ÖKO-filtered tap water, followed by unfiltered water.

Although tap water in France meets potability standards in France (and in the EU), the difference is stark :

Water filtered by ÖKO is much lighter, rounder and odorless.
(chlorine, chemicals and heavy metals)

Once again, it's a pleasure to drink and enjoy!

Anyone can tell lies or mislead future customers.

But the palate and nose can't fool you.

TRY ÖKO and you'll ADOPT it!

Consult the official documents

Official Institut Pasteur tests

Bottle filter on Salmonella

Bottle filter on MNV-1

Rotavirus bottle filter

⚠️ Please note: Any use or distribution of these tests is strictly forbidden.

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Tests carried out by ÖKO EUROPE

Pesticides, metabolites and heavy metals

Fluorides (fluorine)

Perfluoride (PFAS)

Chlordecone

Doping with over 200 contaminants: PFAS, CVM, ...

200 ÖKO TAP contaminants

⚠️ Please note: Any use or distribution of these tests is strictly forbidden.

Want to share this content? Simply share the URL of this page.

Tests on the L3 filter

L3 filter for Salmonella

L3 filter on MNV-1

L3 filter on Rotavirus

L3 filter - 200 contaminants

⚠️ Please note: Any use or distribution of these tests is strictly forbidden.

Want to share this content? Simply share the URL of this page.

The Disruptor by Ahlstrom

JoJo company analysis

Testing for NSF certification

US Army article

Electroadsorption by US Water

Equipment

Filtration technology

ÖKO equips its water bottles with a technology developed by NASA (2002) that effectively filters a broad spectrum of contaminants, potentially present in tap water, bottled water and freshwater sources worldwide.

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ÖKO adventures

Discover some of ÖKO's in-the-field adventures shared by our customers themselves on social networks.

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Our press coverage

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Contaminated tap water?

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Filtering YOUR WATER away from home

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