[clayrichardson]

Whoa. That is cool. Where can I read more about this, and are there any designs available to peruse?

[extrapickles]

The technical term for them is adsorption dehumidifier.

Here is a video of a guy tearing down a typical household unit and he explains the basics of operation:

https://www.youtube.com/watch?v=mR57FhytzFk