Household Water Treatment and Safe Storage Factsheet: Source ...

Household Water Treatment and Safe Storage
Product Sheet: LifeStraw ® Family
Approximate Dimensions:
Approximate Weight:
Output:
Cost:
Maintenance:
Upper container capacity: 2 litres
Plastic hose length: 1 metre
Not available
Average 9 to 10 litres/hour
US$25-40; only available in large orders
Pre-filter should be cleaned daily. Remove pre-filter from
container, wash and replace.
Treatment Efficiency
Purification cartridge should be
cleaned daily. Follow
instructions provided to clean
the cartridge by squeezing the
red bulb, waiting 30 seconds,
and repeating twice. Open the
red valve and allow water to
flow out of the red outlet for 30
seconds.
Squeezing the bulb for backwash
(Credit: Vestergaard-Frandsen)
Bacteria Viruses Protozoa Helminths Turbidity Chemicals
Laboratory >99.9999% 1,2 99.99% 1,2 >99.9% 1,2 100% 3 N/A 4 0 2
Field* N/A N/A N/A N/A N/A N/A
N/A : Not available
1 Clasen et al., 2009
2 www.vestergaard-frandsen.com/lifestraw/lifestraw/faq
3 Due to the pore size (0.02 m), it would be expected that helminths will be removed
4 Due to the pore size (0.02 m), turbidity removal is expected to be high. Extensive testing has shown it will make turbid
water clear (www.vestergaard-frandsen.com/lifestraw/lifestraw-family/faq).
Lifestraw does not remove salt or chemicals such as arsenic, iron or fluoride.
References
Clasen, T. et al. (2009). Laboratory assessment of a gravity-fed ultrafiltration water treatment
device designed for household use in low-income settings. Am. J. Trop. Med. Hyg., 80(5), 2009,
pp. 819–823.
Vestergaard-Frandsen. (no date). Lifestraw ® . Safe drinking water interventions for home and
outside use. Verstergaard Frandsen Group S.A., Switzerland. Available at: www.lifestraw.com