Zero Mass’ solar pannels turn air to water

You only need the Sun to generate drinkable Water from the moisture in the air. They say It works in every environment (even in the desert).

It costs about 2000 $ and 500 $ installation, so 4500 $ for a 2 pannel array (as in the video).

But Dr. Ashok Gadil, Chair Professor of Safe Water and Sanitation, Environment Engineering, UC Berkleley says:

At the moment it would only be useful if you are on an island with no water supply and have a lot of money. It's not the best, cheapest and environment friendly solution to generating water. It would be better to harnes water from morning dew or to recycle used water.