This year's winner, LifeStraw walked away with $100,000 – and with good reason. The straw-like device is a highly portable, personal water-purification tool that turns even the dirtiest water into safe drinking water. It contains a halogen-based resin that filters out almost 100% of bacteria and 99% of viruses that cause deadly diseases. For the more than one billion people who lack access to safe drinking water, LifeStraw is an innovation that could mean the difference between life and death.
