Ecofiltro Mustard Yellow Water Filter - 5L

Discovered at a rural market in South America, the Ecofiltro is a low-tech water filter made from natural clay which purifies water without electricity, without plastic, and without chemical consumables. Its system, composed of clay, activated charcoal, and colloidal silver, eliminates 100% of microplastics and more than 99% of PFAS — certified by independent tests (Measurlabs, December 2024 and June 2025). Created in Guatemala for populations without access to drinking water, it is now produced by a BCorp certified company and distributed by Biovie in France.

How does the Ecofiltro work ?

The Ecofiltro is a filtration system Low-tech which uses natural materials with proven effectiveness. It consists of several layers:

- Clay: It creates microscopic passages that allow water molecules to pass through but not the main contaminants, bacteria, or parasites. The pores have a maximum size of 0.8 micrometers. And of course, it does not let solid particles pass through.
- Activated charcoal: Obtained through a process of heating sawdust, activated charcoal improves water by removing unpleasant odors, taste, and turbidity.
- Colloidal silver : a layer of silver is applied after baking, serving as a secondary protective filter that allows the removal of remaining contaminants. This widely used bactericide around the world purifies water without any adverse effects.

The metal container protects the filter from impacts.

As it passes through this natural composite material, the water is cleansed of contaminants while preserving its mineral composition, resulting in water that is even purer than bottled mineral waters, with a satisfactory taste quality.

What is the efficiency of the filtration ?

Ecofiltro guarantees strict filtration of the main contaminants: parasites, bacteria, pesticides, soaps, and microplastics (diameter between 5 millimeters and 1 micrometer).

The clay filter is regularly subjected to laboratory tests to ensure its effectiveness over time and to guarantee compliance with strict filtration and purification standards. Ecofiltro was initially created for populations without access to drinking water — the safety of individuals and potability are therefore absolute priorities, scientifically validated.

In more detail, each natural component has its use:

Clay captures:
- solids
- bacteria
- the parasites
- microplastics

Colloidal silver eliminates:
- bacteria
- the parasites
- mushrooms
- the toxins
- the viruses

The activated charcoal destroyed:
- bad odors
- the taste
- the color and the suspended particles

Independently tested by Measurlabs, , Ecofiltro eliminates 100% of polystyrene microplastics and does not itself release microplastics, thus ensuring clean and plastic-free drinking water.

The laboratory results (from December 2024) confirm thatEcofiltro eliminates more than 99% of PFAS and pharmaceutical residues., which allows you to obtain clean and purified water for your home.

Tests from June 2025 also confirm that Ecofiltro eliminates more than 99% of bacteria such as the bacterium E.coli for example.

↪️ View the full test report

Also find the detailed analyses of the Barcelona laboratory (in Spanish) and the latest analyses on heavy metals.

Ecofiltro does not eliminate lime, but it significantly reduces its amount. It is important to note that lime is a bactericide that helps limit the proliferation of microorganisms — therefore, it is essential to always have a small amount in purified water.

Is the Ecofiltro safe ?

The Ecofiltro is frequently questioned about its safety, particularly regarding colloidal silver and the materials used. Here are the responses based on available independent tests.

✔️ No release of microplastics : The Measurlabs tests (December 2024) confirm that the clay filter does not itself release microplastics into the filtered water.

✔️ Colloidal silver within regulatory limits : the initial release is about 40 ppb, well below the recommended daily intake limit. According to the USEPA (United States Environmental Protection Agency), the maximum intake should not exceed 350 µg/day for a 70 kg adult.

✔️ Suitable for infants : tap water (basic drinking water) filtered by Ecofiltro is suitable for feeding and hydrating infants.

⚠️ Important contraindications : do not use to filter saltwater, hot water, or rain/well water without prior laboratory analysis.

↪️ Consult the full test reports

An overview of colloidal silver

Colloidal silver is a natural antimicrobial that does not cause side effects or allergies.
On each clay filter, 0.22 liters of colloidal silver at 530 ppm is applied for the 5L, and 0.42 liters for the 20L, both internally and externally. Studies show that initially, there is a greater release of silver, around 40 ppb (0.04 ppm), which is well below the recommended daily intake limit of about 30 ppm. According to the USEPA (United States Environmental Protection Agency), the maximum silver intake should not exceed 5 µg per kilogram of body weight per day, which corresponds to a daily intake of 350 µg for an average adult weighing 70 kilograms.

Setting up the water filter

↪️ To minimize handling and damage as much as possible, we have decided in agreement with our supplier that the Ecofiltro will be shipped directly from their warehouse. The carrier assigned will be FedEx. After the shipment, you will receive an email from the carrier with a tracking link for your package.

In case of damage upon receipt: please accept your package while making reservations with the delivery person. Then contact our customer service directly by email (within 10 days of receipt):
📩 [email protected] with photos and the corresponding invoice.

Assembling and starting up the filtration unit, there's nothing easier !

1) Insert the filter into the container by holding it firmly by the edges (not underneath) to avoid breaking it.
2) Fill the filter to the top to moisten all the walls. Do not let the filter dry after the first use.
3) Close the lid and wait a few hours for the water to flow, then enjoy pure water from the tap! Under normal operation, it produces 2 liters of purified water per hour.
4) Position the filter on the edge of a flat surface so that the tap is easily accessible. If necessary, you can place it on a Ecofiltro wooden lift support available in our store.

Feel free to watch this tutorial video to learn how to install the filter:

During the initial uses, the speed will be slower (the maximum speed may take up to 3 weeks to appear). : It's normal, the pores of the clay open slowly and the water may taste like clay. We recommend discarding the very first filtrations and tasting the water until it has a taste that suits you.

Regular filter maintenance

Once in operation, you must clean the filter and its metal container. at least every 6 months.

1) Completely drain the water from the filter.
2) Remove the clay filter by holding it firmly by the edges. Place it on a clean cloth.
3) With clean hands, carefully wash the filter using a sponge dedicated solely for this purpose. Do not use soap or detergent, only pure water. Clean the inside and outside by rinsing the sponge regularly.
4) Let it dry on a clean cloth. Cover it with another cloth to prevent dust or insects from contaminating it.
5) Clean the metal container, the lid, and the tap using a brush and soap.

We offer you a Ecofiltro maintenance kit available here

Here is the cleaning process in video:

Filter replacement and recycling

The lifespan of the clay filter is 2 years.
> For its replacement, please visit our product page: Clay replacement filter only

To recycle the old filter, several options:
- You can use it as a flower pot or for plant drainage.
- Break it into small pieces and put it in the soil to make fertilizer.

You are thus contributing to ecological and sustainable gardening practices !

Otherwise, make sure to dispose of it with your organic household waste.

They tested the Ecofiltro 5L.

"I received my Ecofiltro today, it is so cute and very practical. The customer service was really attentive."
— matougo lorentine ★★★★★

"Super water filter for drinking soft water that's finally pleasant to the taste."
— Lili KALY ★★★★★

"I ordered an Ecofiltro from the BIOVIE website, the delivery was very fast, the communication is excellent, and the customer service is incredibly responsive."
— dom BK ★★★★★

"We bought the Ecofiltro 5L water filter and we are very happy with it."
— David Moulie ★★★★★

↪️ Read our full review after 6 months of use.

What about the energization of filtered water ?

Among the very recent innovations in the field of health and wellness, hydrogen water is emerging as a very promising trend about which hundreds of scientific studies are underway.

In our Complete blog article on water energization, Eric shares with you the latest discoveries on hydrogen water, its potential health benefits, and the high-quality technologies that allow its production at home, including the device. Mizora, for which you can receive a €10 discount by using our partner code: "BIOVIE".

We thus propose to combine the two technologies, a low tech: the Ecofiltro and a very innovative one: the system. Mizora.

↪️ Ecofiltro: An Ecological Solution for Pure Water at Home

Update: March 2026. Article approved by Éric Viard, founder of Biovie and engineer ISTOM, co-author of " Seaweed in everyday life "(Gallimard, 2024) — Best cookbook in the world, Gourmand Cookbook Awards 2025, and Best cookbook in France, National Academy of Cuisine 2025.