Rigorously Tested
We do not ask you to trust sales claims. Every BaseWater system is tested by outside labs using NSF/ANSI standards.
Aesthetic Effects
Covers reduction of chlorine taste and odor, particulate matter, and other aesthetic contaminants that affect the look, taste, and smell of your water.
Health Effects
Covers reduction of specific health-related contaminants including lead, mercury, VOCs, PFOA/PFOS, cysts, and other harmful substances.
Third-Party Testing
All performance claims are validated by accredited third-party laboratories. We don’t test our own products — independent labs do.
Sample reduction rates from outside lab tests run under NSF/ANSI test rules.
| Contaminant | Standard | Reduction |
|---|---|---|
| Lead | NSF/ANSI 53 | >99.3% |
| PFOA / PFOS | NSF/ANSI 53 | >98% |
| Chlorine | NSF/ANSI 42 | >97% |
| Mercury | NSF/ANSI 53 | >96% |
| VOCs | NSF/ANSI 53 | >95% |
| Cysts (Giardia, Crypto) | NSF/ANSI 53 | >99.9% |
| Particulates | NSF/ANSI 42 | Class I |
| Chloramine | NSF/ANSI 53 | >96% |
All BaseWater systems are sent to outside labs for testing under NSF rules. We do not test them ourselves.
The test water is made stronger than what most city water has. This helps show how the system works in a worst-case test.
Results are checked at the start, middle, and end of filter life to make sure performance stays steady.
Free · under a minute · EPA & EWG data