LifeSaver bottle
portable water purification device
The LifeSaver bottle is a portable water purification device. The bottle filters out objects larger than 15 nanometres.
Development
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 seeing that it took multiple days for water to reach refugees. 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.
Independent test results
In 2007, the LifeSaver bottle was tested by the London School of Hygiene & Tropical Medicine and the results found it to completely filter out all bacteria and viruses.
Use
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 cysts. The carbon filter does not require chemicals.
“LifeSaver bottle” enters the record as portable water purification device. Crown Archives preserves that source wording while asking what LifeSaver, bottle and portable can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Feb 3, 2026. The linked authority identifier is Q2922592. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2004, 2007 and 2009.
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This entry incorporates text from “LifeSaver bottle” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.