World Water Day – March 22, 2018: The Answer is in Nature

March 6th, 2018

March 22 is World Water Day. Each year this global event focuses on a specific aspect of our relationship with water. The theme for World Water Day 2018 is :... More »

What’s the difference between Water Purification and Water Filtration?

The term ‘water purification’ refers to micro-biological protection (getting rid of creepy-crawlies).
It does not refer to the removal of unsafe chemicals and heavy metals.
A water purifier removes or inactivates micro-biological contaminants from drinking water. Pathogenic bacteria, viruses and protozoa (parasite cysts such as Cryptosporidium and Giardia) are examples of these micro-organisms.

Water filtration’ refers to the removal of sediment and/or chemicals.
Specialized water filters target specific types of contaminants (such as chlorine, chloramine or heavy metals).
Water filters provide protection from physical and chemical contaminants.
Some water filters are fine enough to exclude Cryptosporidium and Giardia cysts however they are not designed to be barriers for micro-biological contaminants such as bacteria and viruses.

Water purification requires at least a 4-log reduction or inactivation of viruses, 6-log for bacteria.
4-log means >99.99%. 6-log means >99.9999%


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