> and extracting from the air is automatically clean and safe to drink It isn't, though. Bacteria accumulate. Dehumidifiers are generally very nasty. Although

> and extracting from the air is automatically clean and safe to drink It isn't, though. Bacteria accumulate. Dehumidifiers are generally very nasty. Although bacteria can then be killed (not sure about their toxins), while other contaminants may not be very easy to get rid of. Almost every place on Earth has humidity above 0%. Which makes it possible to extract water, even if it's very inefficient. People have condensed water successfully in deserts.