I checked out PUR Water a while back, and boy was I sure impressed by that bit of technology.
Calle has now shown me another amazing product that does the same thing, and is designed in Sweden!
Called SOLVATTEN (that's Sun Water if I got it right), it uses the sun to make water clean to drink.
A bit from the site:
What is SOLVATTEN?
SOLVATTEN makes unsafe water drinkable by using solar energy. The portable 10 liter container is a patented and scientifically approved Swedish invention. Put SOLVATTEN in a sunny place, give it 3-4 hours and the water will be drinkable! An indicator will show when it is safe to drink.
I like the concept, though the 3 - 4 hours is a bit long to wait. However, you don't need to keep buying stuff to add to your water, and that is a huge bonus.
Viva Sweden!
More info here
Dav out