Laboratory Studies

 

LifeStraw® water filters have been distributed in many countries worldwide. Vestergaard makes every attempt to ensure that local standards and country-specific certifications are met. For inquiries about LifeStraw® registration, certification and testing for a particular country, or for full copies of any of the studies/certifications listed below, please This email address is being protected from spambots. You need JavaScript enabled to view it..

Study

LifeStraw® Family Quality Inspection

 

Institution

Intertek, Vietnam

 

Outcome

Successfully passed Intertek Quality Inspection and complies with the USEPA protocol on bacteria removal of >99.9999%, on virus removal of >99.99%, on protozoan parasite removal of >99.9%. Complies with the USEPA maximum admissible chlorine residual levels < 4mg/L and with the maximum product water permissible turbidity < 0.5 NTU (NSF/ANSI 63)

 

Study

Laboratory assessment of a gravity-fed ultrafiltration water treatment device designed for household use in low income settings.  

 

Institution/Authors

Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, England; Department of Soil, Water and Environmental Science, University of Arizona, Tucson, Arizona; and Vestergaard Frandsen S.A., Lausanne, Switzerland. Thomas Clasen , Jaime Naranjo, Daniel Frauchiger, and Charles Gerba

 

Results

  • Microbiological:  The average log 10 reductions exceeded 6 logs (99.9999%) of the test organism for bacteria, 4 (99.99%) of the test organism for virus, and 3 logs (99.9%) of the test organism for protozoan cysts.
  • Flow Rate: Average flow rate of 8.8 L/hr over the life of the filter
  • Filter Life: All units continued to produce at least 100 mL/min through the 18,000 liter design life.  There was no evidence of impaired microbiological performance through 20,000 liters of operation.

 

Study

Assessment of the LifeStraw Family Unit using the World Health Organization Guidelines for "Evaluating Household Water Treatment Options: Health-based Targets and Performance Specifications", 2011.

 

Institution/Authors

The University of Arizona Department of Soil, Water and Environmental Science. Authors: Jaime Naranjo, B. S. and Charles P. Gerba, Ph.D.

Results

The results obtained from microbial challenges indicated that the units exceeded the requirements for a "Highly Protective" water treatment device as defined by the World Health Organization.

LSF1.0-Figure-2-PhotoShopped

  

Study

Rotavirus Reduction by LifeStraw Family 1.0 Filters, 2013

Institution/Authors

The University of Arizona Department of Soil, Water and Environmental Science. Authors: Jaime Naranjo, B. S. and Charles P. Gerba, Ph.D.

 

Results

The results obtained from the microbial challenge indicated that the units exceeded the requirements for a "Highly Protective" water treatment device as for rotavirus as defined by the World Health Organization guidelines for testing of microbiological water purifiers (WHO, 2011).

LSF1.0-Figure-3-PhotoShopped

 

Study

Confirmation of 20 nano meter pore size.

 

Institution

Para Membranes Co. Ltd, Korea

Results 

  • Log 7.28 reduction in bacteria
  • Log 5.95 reduction in virus
  • The results confirm the fact that the absolute pore size of the membranes is 20 nanometers.

Malaria Research

IR Mapper is a tool that maps insecticide resistance. It consolidates reports of insecticide resistance in malaria mosquitoes onto filterable maps to inform vector control strategies.

irmapperhomepage

Buy LifeStraw®

For consumer purchases, visit Buy LifeStraw® to find a local retailer. For each consumer purchase, one school child in Africa will receive clean water for an entire school year. For large quantities purchased for public health settings, contact us

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