Nanotechnology is the manipulation of matter at an atomic or molecular scale.It enables the development of simple structures from 1 to 100 nanometer.This advanced technology has been incorporated into a new efficient water filtration system and it comes in the from of a bottle or large can called a Lifesaver bottle.This container removes bacteria,viruses,parasites,and other microbiological pathogens from water. It uses a simple device that turns filthy water into safe,sterile drinking water,no matter how badly contaminated it was in the first place. And this is done without the aid of foul-tasting chemicals.It is done with the use of a filter than incorporates nanotechnology. The can version holds 18.5 liters of water,and can process up to 20,000 liters in its lifetime.It can provide safe drinking water for a family of four up to a period of five years. The Lifesaver bottle or can is the creation of Michael Pritchard,a water-treatment expert in England. Pritchard was distressed by the number of people who died by drinking contaminated water after two natural disasters,the 2004 Asian tsunami and the 2005 Hurricane Katrina in The U.S. He began working on the Lifesaver bottle and presented the prototype in 2007 at the Defense and Security Show in London. Pritchard stock of 1,000 bottle sold out within four hours of his presentation.since then the Lifesaver bottle or can has been present in most of the world catastrophes,such as the 2010 earthquake in Haiti.