The Sterasyl ceramic filters contain pure silver. This silver is a material designed to significantly inhibit bacteriological mitosis grow through. The result is that bacterial growth is inhibited from occurring within this ceramic element (which is possible with the other ceramic filter elements). This silver content insures that filtered water contains levels well below those required by international standards. Because of the silver, Sterasyl ceramic filters do not require sterilization after cleaning.
Super Sterasyl ceramic filters are manufactured to the following international standards and have been tested and approved by the following independent bodies or agencies:
Mitosis is the name for the usual method of bacterial cell division. This division is characterized by resolving the chromatin of the cell nucleus into a threadlike form that condenses into chromosomes, each of which separates longitudinally into two parts, one part of each chromosome being retained in each of the two new daughter cells. When conditions of growth (cell division) are right (proper environmental conditions, temperature, pressure, etc.) and sufficient nutrients, the “threadlike forms” can penetrate ordinary ceramic structure and create bacterial cells on the inside of ceramic elements. The Sterasyl grade ceramic filters incorporate pure silver into the porous ceramic shell, which inhibits mitosis or “grow-through".
Note: Ceramic filters are upper chamber elements. They do not work simultaneously with upper chamber Black Berkey purifying elements. Only one technology is designed to operate in the upper chamber at a time.
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