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Laboratory Studies


LifeStraw® 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..


Accelerated long-term aging test at turbidity of 300 NTU. Challenge water contaminated with bacteria E. coli and the bacteriophage MS2 to test the performance of microorganism reduction of the filters.


Bachema Microbiological Laboratory for Environmental Testing, Schlieren, Switzerland



Scope of the test was to monitor the flow rate over a long term test period and control the microorganism reduction performance to confirm the membrane durability and function.


At all 3 test points of the challenge test the log-reduction could be shown to be better than at least 8.6 for bacteria and at least 5.8 for viruses, which exceed the required performance of WHO criteria for “Highly Protective” microbial water purifiers. Mean flow rate was 12 liters per hour.


LifeStraw® Community evaluated for removal of E coli, MS2 bacteriophage and Microspheres (bacteria, virus, protozoan cysts).



Underwriters Laboratories Inc., Bangalore, India.


No less than log 5 reduction for all three categories (bacteria, virus, and protozoa), which meets the required performance of WHO criteria for “highly protective” microbial water filters.


LifeStraw® Community evaluated for performance in line with Mexican water testing standards which includes percentage reduction in total coliform and aerobic mesophilics.



Laborotorio Fermi, Mexico City, Mexico


100.00% reduction in total coliforms; 100.00% reduction in total aerobic mesophilics.


Confirmation of 20 nano meter pore size.



Para Membranes Co. Ltd, Korea


  • 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 helps inform vector control strategies by mapping insecticide resistance in mosquitoes that transmit malaria, Zika, Dengue and other mosquito borne diseases. This helps inform vector control strategies.


Buy LifeStraw®

For consumer purchases, visit 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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