Looks like an amazing solar-powered breakthrough. Could really help the developing world. Here's an excerpt:
Austrian startup Fontus is developing a novel water bottle that is vaporware in just about every sense of the phrase. Not only does it not yet exist in the marketplace, but it is claimed to literally pull water vapor out of the air to fill itself.
Harvesting water from the air via processes like condensation has been practiced in various ways for eons, of course. In recent years, we've seen a James Dyson award go to an Australian irrigation system that works on the same principle, as well as a lightweight bamboo tower that grabs its own water. But the ability to do so basically on-demand and on the go could be a big deal for hikers, bikers and just about anyone with limited access to clean drinking water.
Fontus was also a finalist for the Dyson award in 2014, for its design using solar energy to create a condensation chamber that converts humidity extracted from the air into drinking water. When humid air flows into the device, it hits a series of hydrophobic surfaces that cause water droplets to form while a filter keeps dust, bugs and debris out.