SolarSack Purifies Water with the Sun

Designed with rural and developing areas in mind, the innovative SolarSack water purifier delivers safe water after just four hours in the sun. The SolarSack is both inexpensive and environmentally friendly, powered entirely by solar energy. Each SolarSack unit can hold four liters of water, and, when placed in the sun, will harness the UVA and UVB rays as well as the sun’s heat to clear the water of dangerous bacteria. The bag can also be emptied and reused up to 150 times, with each bag costing the end user less than a dollar.