Water-Hydrogen Converters (WHC)
WHCs are high-tech modules often provided by large corporations in their colonization equipment.
WHC extracts and separate hydrogen and oxygen molecules found within the atmosphere, and can generate water.
Water is then used to rehydrate dust food and feed the population.
Many WHCs also allow to generate crystals such as Hydrogen Crystals, used by some engines as fuel, or even more condensed versions of these crystals.
The first WHC were huge as a career then evolved to be smaller, close to the size of an average six-persons building.
Now WHCs can be found in many smaller sizes, most having the size of a crate. They are also often equipped in specific land vehicles.