No added 70 µm polystyrene beads were detected after filtration in a test on three units. Each unit was conditioned with 50 litres of deionised water before a one-litre sample containing 1,000 beads was filtered. Results apply to this test and do not establish removal of every microplastic size or polymer (Measurlabs, report 15010, 12 February 2025).
No added 70 µm polystyrene beads were detected after filtration in a test on three units. Each unit was conditioned with 50 litres of deionised water before a one-litre sample containing 1,000 beads was filtered. Results apply to this test and do not establish removal of every microplastic size or polymer (Measurlabs, report 15010, 12 February 2025).
| Test Condition | Result |
|---|---|
| Filtered Water (Initial Test) | Some particles were recorded for units 1 and 3; unit 2 was below the reporting limit |
| Spiked Water (Polystyrene Test) | No added 70 µm polystyrene beads detected in any of the three units |
| Recovery Validation | 88.4% recovery of the spiking material |
Results are specific to the tested samples and conditions. Other particles were recorded in some filtered samples.
In a laboratory test on three filter units, 13 of 14 tested substances were reduced below the laboratory’s quantification limit of 0.010 µg/L. Initial concentrations were 0.043–0.057 µg/L. Benzotriazole was not consistently reduced. Results apply to the tested samples and conditions (Measurlabs, report 15544, 5 December 2024).
In a laboratory test on three filter units, 13 of 14 tested substances were reduced below the laboratory’s quantification limit of 0.010 µg/L. Initial concentrations were 0.043–0.057 µg/L. Benzotriazole was not consistently reduced. Results apply to the tested samples and conditions (Measurlabs, report 15544, 5 December 2024).
| Substance | Initial Concentration (µg/L) | After Filtration (µg/L) | Efficiency |
|---|---|---|---|
| Amisulprid | 0.049 | < 0.010 | At least 75% reduction |
| Beta Estradiol | 0.049 | < 0.010 | At least 75% reduction |
| Candesartan | 0.050 | < 0.010 | At least 75% reduction |
| Diclofenac | 0.043 | < 0.010 | At least 75% reduction |
Test Location: Ciudad Vieja, Guatemala
Conducted By: AnalisaLab
Date: June 2025
Testing conducted: June 2025 (AnalisaLab)
| Substance | Initial Concentration (MPN/100ml) | After Filtration (MPN/100ml) |
|---|---|---|
| Total Coliforms | > 23 | < 1.1 |
| Fecal Coliforms | > 23 | < 1.1 |
| E. Coli | > 23 | < 1.1 |
Ecofiltro recommends replacing the filtering unit every two years.
In a laboratory test, two Ecofiltro filtering units were tested through 5,000 litres. No total coliforms were detected in the filtered samples at the tested stages, including at 5,000 litres (LAE, Mexico, 2023, report 23-0228).
The test assessed performance over a volume of water, rather than two calendar years of use.
Test Location: Montevideo, Uruguay
Conducted By: Technological Laboratory of Uruguay
Date: June 2025
Glyphosate concentration fell from 415 µg/L to 6 µg/L using a new filter: a reduction of more than 98% under the test conditions (LATU, report 2224510, analysis dated 18 June 2025).
| Substance | Initial Concentration | After Filtration | Efficiency |
|---|---|---|---|
| Free residual chlorine (Cl2) | 2.70 mg/L | < 0.049 mg/L | More than 98% reduction |
| Glyphosate | 415 µg/L | 6 µg/L | More than 98% reduction |
Chlorine is a separate test parameter, not a pesticide. These results describe the new-filter sample; the one-year-used filter result differs.
Test Location: Sacatepequez, Guatemala
Conducted By: Industrial Biological Laboratory
Date: May 2023
With support from Dr. Oliver Rodés, Barcelona, Spain
