Performance Results
Our 5-stage filters underwent rigorous testing, demonstrating significant reductions in the forever chemicals PFOA and PFOS, lead, chromium, and mercury. Our advanced 5-stage filtration system consistenly surpasses industry benchmarks and establishes a new standard for water quality.
IAPMO Independently Certified
ZeroWater's 5 Stage Ion Exchange Filter is IAPMO certified to reduce PFOA/PFOS, lead, chlorine, chromium and mercury.
Testing Methodology
Water samples were prepared with inorganic non-metal and metal concentrations in accordance withNSF/ANSI standards. For inorganic non-metals and metals tested outside of the NSF/ANSI standard, a concentration of 10 times theEPA's drinking water limitwas used for each compound. The water was then passed through each filter, side by side, at a rate of 1 liter every 90 minutes. After the prepared water was exhausted, a water sample was taken and analyzed to produce the results listed below.
Metals
Metals Table
Name |
ZeroWater* |
Brita** |
| Antimony | 99% | 99% |
| Aresenic III | 98% | 63% |
| Arsenic V | 98% | 94% |
| Barium | 99.9% | 96% |
| Beryllium | 99.9% | 96% |
| Cadmium | 97% | 97% |
| Chromium 3 | 98% | 93% |
| Chromium 6 | 99% | 93% |
| Copper | 99.9% | 93% |
| Iron | 99.9% | 99% |
| Lead | 99% | 85% |
| Manganese | 99% | 49% |
| Mercury | 92% | 92% |
| Selenium | 99% | 79% |
| Silver | 99.9% | 37% |
| Thallium | 99% | 91% |
| Zinc | 99.9% | 95% |
ZeroWater’s 5-stage filter with a rated capacity of 15 Gallons and Brita’s 2-Stage Standard Filter with a rated capacity of 20 Gallons were tested in accordance with the products’ recommended daily usage of 2 gallons of filtration per day. Results shown are based on an averaged calculation of each filter’s test results of drinking water at a pH level of 6.5 and pH level of 8.5.
*% reduction after 15 Gallons of Filtration
**% reduction after 20 Gallons of Filtration
Inorganic Non-Metals
Inorganic Non-Metals
Name |
ZeroWater* |
Brita** |
| Asbestos | 99% | 89% |
| Chlorine | 99% | 95% |
| Cyanide | 99.9% | 85% |
| Fluoride | 99% | 3% |
| PFOA/PFOS | 95.1% | 0% |
| Nitrate | 98% | 48% |
| Nitrite | 99% | 93% |
