MIT engineers have created a passive water harvesting system that pulls clean drinking water from the air—even in extremely dry places like Death Valley. Using a special hydrogel shaped like bubble wrap, it absorbs moisture at night and releases it as drinkable water during the day with sunlight. Tested in low-humidity conditions, it produced up to 161.5 mL of water daily without any external power. Compact and sustainable, this innovation could help millions without access to safe water.
MIT engineers have created a passive water harvesting system that pulls clean drinking water from the air—even in extremely dry places like Death Valley. Using a special hydrogel shaped like bubble wrap, it absorbs moisture at night and releases it as drinkable water during the day with sunlight. Tested in low-humidity conditions, it produced up to 161.5 mL of water daily without any external power. Compact and sustainable, this innovation could help millions without access to safe water.
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