Should keep 4 people well hydrated if it can run all day, would probably keep 10-15 alive for a while until rescue. Half those numbers if it only works when the sun is out.

I'm not one to call a technology revolutionary at the drop of a hat (most of the time it isn't a new technology but instead another website) but this seems world changing if it pans out.

> a little less than a 12oz can

Or exactly a standard 330ml can. :)