The price of a caffe latte -- about US$3 -- really can save a
life. The LifeStraw, a beefed-up drinking straw designed by the
Swiss-based company Vestergaard Frandsen, uses seven types of
filters, including mesh, active carbon and iodine, to make 700L of
water clean enough to drink. It can prevent waterborne illnesses,
such as typhoid and diarrhea, that kill at least 2 million people
every year in the developing world. It can also create safe
drinking water for victims of hurricanes, earthquakes or other
disasters. And for the weekend warrior's back-country hike.
www.lifestraw.com

