A family-sized household water filtration unit.
The LifeStraw® Community purifier is a 25 liter point-of-use water purifier with built-in safe storage for community, education, and institutional settings. It converts microbiologically contaminated water into clean, safe drinking water.
Vestergaard Frandsen is targeting Africa, the Americas, Asia and Europe with the LifeStraw® Community purifiers.
Goal 6: Clean water and sanitation
Target users of the LifeStraw® Community purifiers are students, teachers, patients, health workers, community workers, doctors who currently do not have access to safe drinking water.
LifeStraw® Community purifiers are a registered product of Vestergaard Frandsen.
Available for online purchase via Earth Easy
In October 2014 Vestergaard Frandsen distributed 1,646 LifeStraw® Community purifiers to 301 schools, reaching over 157,975 school children in that region.
The LifeStraw® Community purifiers filter 25 liters of impure water at an estimated flow rate of 12 L/hr of purified water. The filtering process is as follows:
• 25 litres of untreated water is poured into the top of the unit, also called the dirty water container
• The pre-filter removes coarse particles larger than 0.080mm
• The ultrafiltration hollow-fibre membrane cartridge then stops all turbidity particles and pathogens larger than 20 nanometres (including all bacteria, viruses and protozoan cysts).
• Particles and microbes larger than 20 nanometres stay on the dirty side of the membrane and clean/purified water passes through the membrane
• Purified water can be collected from any of the four taps
• The backwashing handle allows semiautomatic backwashing; when it is pulled down and released, pathogens and dust particles on the dirty side of the membrane are lifted by backpressure and then flushed out into the red backwash container
Full specifications are shown in the included image from the LifeStraw® Community user manual published May 2013
Vestergaard Frandsen provide technical support for Lifestraw® Community purifiers. Minimal training and assembly is required by the customer/user.
Vestergaard Frandsen mentions that they use a Ultrafiltration hollow-fibre membrane cartridge in the Lifestraw® Community purifiers.
Lifestraw® Community purifiers provide a minimum of 70,000 – 100,000 liters of safe drinking water and 12 liters of purified drinking water per hour.
Lifestraw® Community purifiers use LifeStraw® Family ultrafiltration technology, which:
• Satisfies the criteria of the “Highly Protective” category for microbiological performance specifications as defined in WHO’s 2011 ‘Evaluating Household Water Treatment Options: Health-based targets and microbiological performance options
• Complies with the US Environmental Protection Agency (EPA) 1987 Guide Standard and Protocol for Testing Microbiological Water Purifiers
Vestergaard Frandsen have tested Lifestraw® Community purifiers with independent labs including: Bachema Microbiological Laboratory for Environmental Testing, Schlieren, Switzerland, Underwriters Laboratories Inc., Bangalore, India., Laborotorio Fermi, Mexico City, Mexico, Para Membranes Co. Ltd, Korea.
Users must be cautious with avoid cross contamination of the clean water container and not consume water from backflush area.
Lifestraw® Community purifiers work best with a table mount or other raised surface.
How often/when should maintenance be performed?
Miles, S.L., et al., Point-of-Use drinking water devices for assessing microbial contamination in finished water and distribution systems, Environmental Science and Technology, 2009 Mar 1;43(5):1425-9.
Lifestraw® Community purifiers comply to USEPA Protocol and WHO regulations and standards
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