Passive solar heat device could be hygiene boon in remote regions

Using solar heat to turn water into superheated steam without optics, MIT discovery hopes to enable sterilisation and provide clean drinking water
Hygiene is a persistent problem in remote regions of poorer countries. Medical facilities require sterilisation, and clean drinking water is often in short supply. A device developed by MIT engineers has the potential to provide both, using only the sun as a power source.
The suspended heating device being tested at MIT, where it generated steam at 14