Three Teens Invent Salt-Powered Fridge That Runs Without Electricity

Three innovative teens have engineered a salt-powered refrigerator that operates without electricity, aiming to deploy 200 units in hospitals. This breakthrough eco-friendly cooling tech promises major impacts in remote and energy-limited healthcare settings.
Unlike standard ice packs, the Thermavault’s cooling salt can be recycled on-site—just boil off the water, reclaim the ammonium chloride, and it’s ready for another round of cold storage. This clever hack could redefine off-grid vaccine delivery worldwide.