danish company

Vestergaard Frandsen LifeStraw

A $5 water purifier for the masses

The LifeStraw, from Danish company Vestergaard Frandsen, may be the best hope yet for the 1.1
billion people worldwide who lack access to safe drinking water. The 3.4-ounce â€straw†can filter up to 185 gallons of water, enough to supply one person for a year. Just dip the plastic tube into water
and suck on it to draw liquid up through three filters. Two textile layers remove dirt, iodine-based resin kills 99.3 percent of bacteria and viruses, and activated carbon catches whatever the iodine missed.

[ Read Full Story ]



Download Our iPhone App

Stay up to date on the latest news of the future of science and technology from your iPhone with full articles, images and offline viewing



Follow Us On Twitter

Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed



Become a Fan On Facebook

Share links with friends, comment on stories and more


December 2009: Best of What's New

In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.

Check out the best of what's new here.

Popular Science Photo Pool


Share your photos in the Pop Sci pool at www.flickr.com!
tags_sprite.png
POP_embeddedForm_cover_May09.jpg