Water harvester

Found on New Atlas: a water harvester design from MIT to extract fresh water out of the air. Differently from majority of similar devices that are made up of adsorbent materials, this new device is formed by a series of vertical fins made up of with copper sheets, sandwiched in copper foams and then coated with a specialized zeolite.

In air with 30% umidity (classed as arid), the harvester can produce up to 1.3 liters of drinkable water per day per liter of the adsorbent coating used, namely 5.8 L liters per kilogram per day.

While there’s no shortage of other water harvesters in the works, this one has a few advantages, however it requires energy to release the water.

https://newatlas.com/technology/water-harvester-arid-air-mit