Saw a website recently that has a "portable" 110v device for extracting water from the atmosphere. It says it can produce up to 55 gals of drinking water in a tad over 3 days at an average of 60% humidity. It costs around $500. I was thinking if you used a converter attached to solar panels it would be portable for real. For those who don't use wellwater or a clean water supply (me) it would be neat if it did what it claims. He also claims to produce extremely pure water.