Plastic tube with purple flip cap. Hollow fibers inside tube filters contaminants from water. Purple string attached to one end of tube.

LifeStraw is a personal and mobile water purification tool developed as a practical response to the importance of safe water. LifeStraw was designed to turn most surface water into safe drinking water, offering relief from waterborne diseases of major public concern such as typhoid, cholera, dysentery, and diarrhea. It is distributed throughout the world, but the main area of focus is Africa.