What kind of machine is an air-to-air watermaker?

It is an ordinary device without much technical content.

Air water machine products, strictly speaking should be called "air pumping".

It is by its own vapor compression system continuous cycle of refrigeration, and then use the fan motor to drive the wet air flow through the evaporation parts, the air in the original water vapor on the surface of the evaporator condenses into water, frost or ice, and then get water. Finally the obtained water is purified and filtered as necessary.

Simply put, this device is a composite of a refrigerator and a water purifier, becoming structurally integrated.

This device is simply a combination of refrigerator and water purifier in one structure.