http://www.elementfour.com/
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does produce enough water to serve as a drinkwater reservoir
needs no other basic resources than just empty air
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relatively high energy demand
no mineralised water
cannot come up for industrial households' water demands
Of course you can do the same with a self-dug hole in the ground, a plastic sheet, a cup, some plants, the sun shining away and lots of patience - but hey: for that price it's almost a steal!
