The "tea bag" in place near the mouth of the special water bottle
The cone shown in other figures fits into the top of this water bottle
The tea bag being put in place near the mouth of the special water bottle
The tea bag is held in place near the mouth of the special water bottle
Used and unused tea bags
Stellenbosch University's Hope Project has produced a disposable water filter shaped like a tea bag. When placed in the neck of a water bottle, the bag removes all harmful chemicals and microbes. Each bag cleans one liter (1.06 quarts) of water, so a lot will be needed to make any significant impact on water-related health issues globally. However, when compared to competition such as the LifeStraw or LifeSaver, it would seem to be a cost effective solution. The product is currently being tested by the South Africa Bureau of Standards.
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