How Air Fountains Pull Water From Humidity
Follow the water from the air around you to the container at the bottom of the device. Once you see the steps, the whole concept makes sense.
Step 1: pull in humid air
A fan or natural airflow draws surrounding air into the unit. The more humid that air, the more raw material there is to work with.
Step 2: cool it below the dew point
The air passes over a cold surface. When its temperature drops below the dew point, it can no longer hold all its moisture, and vapor condenses into droplets on the surface.[1]
Step 3: collect the droplets
Those droplets run down and drip into a collection container. This is the “fountain” part — a slow but steady accumulation of water.
Step 4: treat before drinking
Collected water is essentially distilled and can pick up contaminants from surfaces, so it needs filtering/disinfection and ideally re-mineralization before you drink it — per EPA guidance. See treating collected water.
Why humidity is everything
Every step depends on there being enough moisture in the air. In humid conditions the process hums along; in dry air there’s simply little to condense. That single fact explains most of the difference between a happy owner and a disappointed one. More on the numbers in humidity, dew point & yield.
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