British Berkefeld Water Filters Elements

Bacteriostatic Effect

The Doulton ceramic filter is designed to trap bacteria mainly on the outer surface of the ceramic element preventing them from passing through into the drinking water.

Given favorable temperature and pressure conditions, the accumulated bacteria could proliferate and grow unless prevented by some means. To prevent this our elements (Super Sterasyl) are manufactured with a small amount (about 0.07%) of silver in the ceramic shell. Silver is a recognized bactericide, so when the bacteria comes into contact with the silver impregnated ceramic, their growth is inhibited. This self-sterilizing effect is known as the Bacteriostatic Effect.

The silver leach rate from the ceramic is very low and always well below the national recommended limits.

*Not yet available in California, Iowa, or Wisconsin.

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