Discovery reports: "Stefan Ronge, chief creative officer at Deportivo, an advertising agency which backed the project in conjunction with UNICEF, told DNews the idea is to highlight the scarcity of fresh water in some regions of the world. Countries like Sweden have lots of fresh water per person and the infrastructure is there to deliver it. In many parts of Africa or Asia that isn’t the case. UNICEF and Deportivo are showing off the machine this week at the Gotha Cup, a youth soccer tournament. Players will bring in their sweaty clothes and get a cup of water back".
So this machine may not cure the world's water shortages but it is a step in the right direction. It shows that in the future there could be the ways and means to ease shortages of water. For now it draws public attention to the lack of safe water in parts of the world.
"The Sweat Machine, was built by engineer Andreas Hammar, the highest technology component is in the filter, developed at the Royal Institute of Technology in Stockholm. The rest is off-the-shelf parts, including a clothes dryer"
A startling fact from Unicef - 780 million people in the world lack access to clean water.
You can read the full details of the method at Discovery here..
And here at BBC News