PUR Reduction Data & NSF/ANSI Standard Requirements
| Substance | PUR Reduction Data | NSF/ANSI Standard Requirements | ||
|---|---|---|---|---|
| Overall % Reduction | Overall % Reduction | Influent challenge concentration (mg/L) | % Reduction Requirement/Maximum permissible product water concentration (mg/L) | |
| Table 1.1 Standard 53 - certified by WQA to the NSF/ANSI Standard | ||||
| Lead (pH 8.5) | 99.4% | Not Certified | 0.15 ± 10% | 0.01 |
| Lead (pH 6.5) | 99.7% | Not Certified | 0.15 ± 10% | 0.01 |
| Table 1.2 NSF/ANSI Standard 42 - Aesthetic Effects | ||||
| Chlorine (Taste & Odor) | 97.50% | 97.50% | 2.0 mg/L ± 10% | ≥50% |
| Nominal Particulate (Class I) (Class I, particles 0.5 to <1µm) | 99.8% | Not Certified | At least 10,000 particles/mL | ≥85% |
| Nominal Particulate (Class VI particles 50 to 80µm) | Not Certified | 99.6% | At least 1,000 particles/mL | ≥85% |
| Zinc | 92.70% | 63.3% | 10 mg/L ± 10% | 5 mg/L |
| Table 1.3 NSF/ANSI Standard 53 - Health Effects | ||||
| Benzene | >96.8% | 86.4% | 0.015 ± 10% | 0.005 |
| Cadmium (pH 6.5) | 98.9% | 90.2% | 0.03 ± 10% | 0.005 |
| Cadmium (pH 8.5) | >99.3% | 86.7% | 0.03 ± 10% | 0.005 |
| Carbon Tetrachloride | >96.8% | Not Certified | 0.015 ± 10% | 0.005 |
| Copper (pH 6.5) | 99.3% | 85.7% | 3.0 ± 10% | 1.3 |
| Copper (pH 8.5) | 95.9% | 90.1% | 3.0 ± 10% | 1.3 |
| Mercury (pH 6.5) | >96.4% | 96.5% | 0.006 ± 10% | 0.002 |
| Mercury (pH 8.5) | >96.4% | 88.8% | 0.006 ± 10% | 0.002 |
| Methoxychlor | 81.1% | 81.1% | 0.12 ± 10% | 0.04 |
| Simazine | >98.3% | Not Certified | 0.012 ± 10% | 0.004 |
| Tetrachloroethylene | 92.5% | 92.5% | 0.015 ± 10% | 0.005 |
| Toluene | 89.4% | 89.4% | 3.0 ± 10% | 1 |
| Table 1.4 Standard 401 - Emerging Compounds¹ | ||||
| Bisphenol A | >99.0% | Not Certified | 0.002 ± 20% | 0.0003 |
| Estrone | >96.3% | Not Certified | 0.00014 ± 20% | 0.00002 |
| Ibuprofen | 95.5% | Not Certified | 0.0004 ± 20% | 0.00006 |
| Linuron | 94.5% | 94.5% | 0.00014 ± 20% | 0.00002 |
| Naproxen | >96.8% | Not Certified | 0.00014 ± 20% | 0.00002 |
| Nonyl Phenol | >95.8% | Not Certified | 0.0014 ± 20% | 0.0002 |
| Phenytoin | >95.8% | Not Certified | 0.0002 ± 20% | 0.00003 |
| Trimethoprim | 94.3% | 94.3% | 0.00014 ± 20% | 0.00002 |
Notes and Disclaimers
Like other leading brands, PUR does not filter microbes.*
* As of 5/1/25 Brita® and ZeroWater® were not certified to filter microbes. Brita® is a trademark of Brita LP. ZeroWater® is a trademark of Zero Technologies, LLC.
+ NSF Standard 401 has been deemed as "incidental contaminants/emerging compounds." Incidental contaminants are those compounds that have been detected in drinking water supplies at trace levels. While occurring at only trace levels, these compounds can affect the public acceptance/perception of drinking water quality.
¹ Available Colors: C, Z, or W (Classic or other Blue), G (Aqua), I (Pearl), K (Oasis), L (Lime), M (Sage), P (Blush), Q (Coral), U (Violet), B (Smoke), F (Sanstone), Y (Tangerine).
