Solar Bottle Uses Sun to Purify Water

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These new bottles are designed to take advantage of the "SODIS" method of water disinfection—using the heat and ultraviolet radiation from the sun to purify water—by putting a layer of black, sun-absorbing material opposite the clear side of the bottle. The SODIS method can be used with generic clear water bottles and a painted black tin roof, but these "Solar Bottles" are designed to be entirely portable and feature a clever notched handle that can make it easier to get the water directly in the sun's rays.

Each Solar Bottle can hold a gallon of water and can be held back-to-back for easy transport.

SOLAR BOTTLE: Water-purifying drinking container [Inhabitat via Engadget]

Previously: Eight Reusable Water Bottles Compared [BBG]

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