Test results
Independent Laboratory Test Results
Third-Party Verified Performance Data for All Berkey Filters
Comprehensive testing by NABL-accredited laboratories
All Berkey filter elements undergo rigorous independent laboratory testing to verify removal performance. Below you'll find complete test results from accredited facilities 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 removal.
Berkey Phoenix Filters - New Millennium Edition
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. View detailed results below.
Complete Contaminant Removal List
Full listing of all contaminants removed by Black Berkey filter elements including removal percentages and testing methodology.
View Complete List⚗️ Inorganic ContaminantsLos Angeles Lab Results - Inorganic
Independent testing of heavy metals, minerals, and inorganic compounds including lead, arsenic, and mercury.
View Inorganic Results🧪 Organic ContaminantsLos Angeles Lab Results - Organic
Testing results for volatile organic compounds (VOCs), petroleum products, and organic chemicals.
View Organic Results💊 Emerging ContaminantsChloramine, Pharmaceutical & Pesticide Testing
Results for disinfection byproducts, pharmaceutical drugs, agricultural pesticides, and herbicides.
View Results🔬 PFAS TestingPerfluorinated Chemical (PFOA) Reduction
Independent testing of PFAS "forever chemicals" including PFOA and related compounds.
View PFAS Results⚠️ Heavy MetalLead Removal Testing
Detailed lead reduction testing showing removal percentages at various concentrations.
View Lead Results☢️ RadiologicalUranium Removal Testing
Testing results for uranium and other radiological contaminants found in groundwater.
View Uranium Results☢️ RadiologicalRadiation Testing - Alpha Reduction
Alpha particle radiation reduction testing and removal efficiency data.
View Alpha Results☢️ RadiologicalRadiation Testing - Beta Reduction
Beta particle radiation reduction testing and removal efficiency data.
View Beta Results🦠 Biological ContaminantsMicrocystin Toxin & Algae Removal
Testing results for harmful algae blooms and microcystin toxins in water.
View Toxin ResultsPF-2 Fluoride & 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 NABL-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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