Water for the World

A $3 gadget that promises to quench a user’s thirst for a year without spare parts, electricity or maintenance.

With his rimless eyeglasses and natty suit, 35-year-old Mikkel Vestergaard Frandsen looks like the kind of CEO who enjoys a fine red. Less likely is the image of him slurping that Bordeaux through a bright blue straw the size of a fat kazoo. But slurp he has, and not just wine: he’s also tasted soda, pond water, and water from a lake in Nairobi through the gizmo. “You have to suck pretty hard at first to get it moist, but after that it’s easy,” he says of the LifeStraw, the portable water filter manufactured by his Danish company.

Most of the LifeStraw’s users will never drink anything fancier than plain water through the device. But its impact on their lives can’t be overstated. More than 1 billion people worldwide lack access to safe drinking water, and 6,000 people die each day of waterborne diseases like typhoid, cholera and dysentery. In regions like sub-Saharan Africa, half of most people’s water consumption takes place outside the home