Solar distillation box
<p>1-sunlight<br> 
2-windowpane<br>
3-steam<br>
4-contaminated water<br></p>
5-Drinking water
<a href="//commons.wikimedia.org/wiki/User:Origamiemensch" title="User:Origamiemensch">Origamiemensch</a>
CC BY 3.0
<p><span class="int-own-work" lang="en">Own work</span>
</p>
Abgewand von <a href="//commons.wikimedia.org/wiki/File:Boite_de_distillation_solaire.jpg" title="File:Boite de distillation solaire.jpg">File:Boite de distillation solaire.jpg</a>