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Penn Engineers Discover a New Class of Materials That Passively Harvest Water from Air
(blog.seas.upenn.edu)
This is a most excellent place for technology news and articles.
depends how space efficient it is. maybe you would you need to fill your entire basement with the stuff for it to work.
A surface-area maximizing structure like a radiator grille could probably be used if it's anywhere near reasonable, but yeah, that could be a concern