Black Berkey Purification Elements:  Filtration Specifications

The Black Berkey Purification Elements far surpass other water filters in filtration capability as evidenced by their extensive filtration specifications. These elements have a specialized purification process that is due to their unique structure. The element's filtration media is a combination of micro-pores, which trap harmful contaminants like bacteria, and revolutionary material with adsorption and ion exchange properties that essentially attract molecules and viruses to the media, preventing them from passing into your drinking water.

Many water filters on the market may claim to be a purifier but do not meet the performance specifications required for this classification. In order to be classified as a water purifier, a water treatment device must remove at least 99.9999% of pathogenic bacteria (known as a log 6 reduction in the water treatment industry) and reduce viruses by 99.99% (log 4 reduction). Our Berkey water filter systems can be classified as a water purifier because the elements actually remove 99.9999999% of pathogenic bacteria (log 9 reduction) and 99.999% of viruses which greatly exceeds the standards.

The Black Berkey filters have been tested by several EPA-accredited laboratories including the Department of Toxicology and Environmental Science at Louisiana University, Spectrum Labs, and the University of Phoenix. This extensive testing confirmed that the Black Berkey Purification Elements far exceed EPA and ANSI/NSF (Std. 53) protocol.

The Black Berkey filters have been tested and confirmed to remove or greatly reduce the contaminants listed below.

 Viruses:  99.999% reduction

 MS2 Coliphage - Fr Coliphage

*Exceeds purification standards


Pathogenic Bacteria Surrogate:  >99.9999%

Raoultella terrigena

*Exceeds purification standard (Log 6)


Micro-Organisms:  99.9% reduction

Including:  Total Coliform, Fecal Coliform, e.Coli

Pharmaceuticals:  99.5% reduction

Including:  Erythromycin USP, Progestrone, Naproxen Sodium, Carbamazepine, Caffeine, Acetaminofen, Sulfamethoxazole, Triclosan, BPA

Trihalomethanes:   Removed to below lab detectable limits >89.8% reduction

Including:  Bromodichloromethane, Bromoform, Chloroform, Dibromochloromethane  


Inorganic Minerals:  Removed to below lab detectable limits

Including:  Chlorine Residual (Total Residual Chlorine)


Heavy Metals:  Greater than 95% reduction for most metals

Including:  Aluminum (> 75%). Antimony (>97.5%), Barium (>80%), Cadmium (>99.5%), Cobalt (>95%), Chromium (>95%), Chromium 6 (>99.85%), Copper (>95%), Lead (>97.5%), Mercury (>98%), Molybdenum (>90%), Nickel (>95%), Vanadium (>87.5%)


Volatile Organic Compounds:  Removed to below lab detectable limits

Including:  Alachlor, Atrazine, Benzene, Carbofuran, Carbon Tetrachloride,

Chlorine, Chloramines, Chlorobenzene, Chloroform, 2 4-D, DBCP,

p-Dichlorobenzene, o-Dichlorobenzene, 1 1-Dichloroethane

1 2-Dichlorpethane, 1 1-Dichloroethylene, Cis-1 2-Dichloroethyiene

Trans-1 2-Dichloroethylene, 1 2-Dichloropropane

Cis-l 3-Dichloropropylene, Dinoseb, Endrin, Ethylbenzene

Ethylene Dibromide (EDB), Heptachlor, Heptachlor Epoxide

Hexachlorobutodlene, Hexachloro-, Cyclopentadlene, Lindane

Methoxychlor, MTBE, Pentachlorophenol, Simazine, Styrene

1,1,2,2-Tetrachloroethane, Tetrachloroethylene, Toluene

2,4,5-TP (Silvex), 1 2 4-trichlorobenzene, 1 1 1-trichloroethane

1 1 2-trichloroethane, Trichloroethylene, o-Xylene, m-Xylene


 Download a full list of recent test results here: Test_results.pdf


Also removes or reduces:

Arsenic (>99%),MBAS (>96.67%), Nitrites (>95%), Selenium (>97.5%), Thallium (>99.5%), as well as rust, silt, sediment, turbidity, foul taste and odors. 




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