||This article appears to be written like an advertisement. (July 2012)|
|Invented by||Michael Pritchard|
After the 2004 Asian Tsunami and Hurricane Katrina disaster in the U.S., Michael Pritchard, a water-treatment expert in Ipswich, England began to develop the Lifesaver bottle after hearing the idea from Dr. Zackary Kepes and Austin Castellano. Pritchard presented a prototype of the Lifesaver at 2007's DSEi London, where the product was named "Best Technological Development". Pritchard's entire stock of 1,000 bottles sold out within four hours of the presentation.
Speaking at TED in 2009, Pritchard estimated that by using the Lifesaver bottle, reaching the Millennium Development Goals of halving the number of people without drinking water will cost $8 billion; while $20 billion would provide drinking water for everyone on Earth. The recurring cost of replacing the filtering cartridges every few years was not discussed. Estimations of his company's potential profits were also absent from the presentation.
Independent test results
The bottle's interchangeable filter can purify between 4,000 and 6,000 litres (1,050 to 1,585 gallons) before it stops working and needs to be replaced. It filters out objects bigger than 15 nanometres—including viruses, bacteria, and heavy metals. The carbon filter does not require chemicals. The process of filtering the water takes 20 seconds, allowing for 0.71 litres (1.5 pints) of water to be filtered. Once a filter has reached its limit, it will not allow contaminated water to be drunk. The Livesaver bottle has been used by soldiers for drinking water as well as cleaning wounds.
To filter the water, one puts contaminated water in the back of the bottle, then screws the lid on. The lid has a built in pump which is operated manually with a hand; the pumping action forces the contaminated water through the nano-filter and safe drinking water collects in another chamber in the bottle. The drinker then opens the top of the bottle from which safe drinking water comes out.
A much larger version of the Lifesaver bottle, called the Lifesaver Jerrycan, has the same filtering technology. The can allows for the filtration of 10,000 to 20,000 litres (2,650 to 5,300 gallons). One jerrycan filter can provide water for four people over a three-year span.
The bottle can be used to filter urine and will remove all microbiological contamination. However there will be an amount of dissolved salts that can not be removed. Metals such as iron, and salt from salt water cannot be removed effectively, either.
- "Michael Pritchard: Inventor". TED. August 2009. Retrieved 13 September 2009.
- Jacquot, Jeremy Elton (15 September 2007). "This Water Purifier is a Real "Life Saver"". TreeHugger. Retrieved 13 September 2009.
- Hope, Christopher (12 September 2007). "Bottle makes dirty water drinkable". The Daily Telegraph. Retrieved 13 September 2009.
- Barrie, Allison (9 May 2008). "'Lifesaver' Bottle Purifies Water in Seconds". Fox News Channel. Retrieved 13 September 2009.
- Pritchard, Michael (August 2009). "Michael Pritchard's water filter turns filthy water drinkable". TED. Retrieved 13 September 2009.
- - London School of Hygiene & Tropical Medicine - independent test results
- "The Lifesaver jerrycan: Performance and technical data". Lifesaver Systems. Retrieved 13 September 2009.
- LifeSaver bottle Questions and Answers