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Cypress Bay High School
Weston, Fla.
Self-powered, portable UV water filtration device


We will invent a portable, handheld water purification device for use by people in developing countries. The device will consist of a first stage particulate filter and a second stage germicidal ultraviolet (UV) chamber and be powered by a hand crank. The compact unit will be affordable (less than $25), will filter and purify 500mL of contaminated water in less than two minutes, and kill 99.999% of viruses, bacteria, and parasites. The device will also be simple to use and a practical solution for individuals with minimal operational knowledge of the device.