Test results
Independent Laboratory Test Results
Third-Party Verified Performance Data for All Berkey Filters
Testing by EPA-certified, NSF-accredited, and ISO/IEC 17025 laboratories
All Berkey filter elements undergo rigorous independent laboratory testing to verify contaminant reduction performance. This page provides public access to independent third-party laboratory test reports and certification documentation for Phoenix New Millennium Edition, Black Berkey, and PF-2 Fluoride filter elements. Unlike many competitors who rely on material claims alone, we provide transparent, third-party verification of actual contaminant reduction.
Berkey Phoenix Filters - New Millennium Edition (2025)
The most extensively tested gravity filter on the market with verification across 200+ contaminants including PFAS "forever chemicals," pharmaceuticals, and radiological elements.
Black Berkey Filter Element Test Results
The original Black Berkey filter elements have been tested across multiple contaminant categories by independent laboratories. Each card links to a full article with detailed results, lab credentials, and a downloadable PDF report.
Complete Contaminant Reduction List
Complete lab-verified list of 200+ contaminants reduced across 9 categories including PFAS, heavy metals, pharmaceuticals, VOCs, radiologicals, and algae toxins. Every result sourced from independent lab reports.
View Complete List ⚗️ Inorganic ContaminantsInorganic Contaminant Lab Results
County of Los Angeles lab testing of 19 inorganic contaminants including lead, arsenic, mercury, chromium VI, and heavy metals. Results up to 99.8% reduction.
View Inorganic Results 🧪 Organic ContaminantsOrganic Contaminant Lab Results
County of Los Angeles lab testing of 54 organic contaminants including VOCs, pesticides, herbicides, glyphosate, MTBE, and haloacetic acids. Results up to 99.99% reduction.
View Organic Results 💊 Emerging ContaminantsPharmaceutical, Chloramine and BPA Results
Envirotek Laboratories testing of 100+ contaminants including 17 pharmaceuticals, chloramines, BPA, petroleum contaminants, pesticides, and heavy metals. Results at 99.5% or more.
View Results 🔬 PFAS TestingPFAS and Forever Chemical Reduction
Independent testing of PFAS compounds including PFOA, PFOS, and 7 additional compounds via Envirotek Laboratories. PFOA reduced to below EPA's 4 ppt MCL. Includes EPA regulatory context and health guide.
View PFAS Results ⚠️ Heavy MetalLead Reduction Lab Results
Envirotek Laboratories testing showing 99.9%+ lead reduction maintained through 160 gallons at 67 times the EPA action level. Includes full interval-by-interval data and lead safety guide.
View Lead Results ☢️ RadiologicalUranium Reduction Lab Results
Envirotek Laboratories testing showing 97%+ uranium reduction across 50 gallons. Post-filtration levels remained well below the EPA MCL of 30 µg/L throughout the full test.
View Uranium Results ☢️ RadiologicalGross Alpha Radiation Reduction
Envirotek Laboratories testing showing 98.7%+ gross alpha reduction across 50 gallons at 6x the EPA MCL. All results met EPA drinking water requirements throughout the full test.
View Alpha Results ☢️ RadiologicalGross Beta Radiation Reduction
Envirotek Laboratories testing showing 95.3%+ gross beta reduction across 50 gallons at 6x the EPA MCL. All results met EPA drinking water requirements throughout the full test.
View Beta Results 🦠 Algae and ToxinsMicrocystin Toxin and Algae Results
BCS Laboratory testing showing Microcystin LR toxin reduced to non-detectable levels and Microcystis algae reduced by 99.9999%+. Includes algae bloom health guide and EPA advisory context.
View Toxin ResultsPF-2 Fluoride and Arsenic Filter Results
PF-2 post-filter elements are designed specifically for fluoride and arsenic reduction. View testing data and media specifications below.
Note on Testing Standards: All independent testing follows recognized protocols including NSF/ANSI standards, EPA guidelines, and APHA methods. Testing is conducted by accredited laboratories with no financial relationship to Berkey beyond paid testing services. Results represent performance under controlled laboratory conditions and may vary based on actual water quality, flow rate, and filter maintenance.
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