LifeStraw Mission (5 L)

High-volume, gravity water purifier for outdoor expeditions, adventure travel, and use in emergencies.


LifeStraw Mission (5 L)

LifeStraw Mission (5 L) is rated 5.0 out of 5 by 3.


High-volume, gravity water purifier for outdoor expeditions, adventure travel, and use in emergencies.

    • High performance purification technology removes viruses, bacteria, parasites and microplastics
    • Includes 5 liter gravity bag, with quick-connect hose, purification cartridge and built-in backwashing system
    • Compact and lightweight: just 1.17 lbs with high volume capacity to purify 12 liters per hour
    • Lifetime of 4,755 gallons (18,000 liters), enough for 5 people for over 3 years
    • This product gives back: one product, one school child, one year of clean water

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High Performance Purification for years of safe water

The LifeStraw Mission’s purification cartridge removes virtually all pathogens found in drinking water. It lasts 4,755 gallons – that’s more than 3 years’ worth of drinking water

Ultralight for backpacking, emergencies

Weighing just over 1 lb but packing enough power to provide 5 liters per hour of safe water. No need to store or carry heavy amounts of drinking water.

Certified in the lab, tested around the globe

LifeStraw Mission has been deployed to emergencies, used in basecamps, and trekked on expeditions around the world. It meets the highest standards for drinking water protection from both the US EPA and the World Health Organization.

  • How it Works
  • Specs
  • Data & Evidence

How it Works

How It Works

The LifeStraw Mission is a gravity powered system that purifies water to 0.02 microns, making contaminated water safe to drink by removing bacteria, parasites, microplastics, and viruses. Ideal for groups, the LifeStraw Mission can provide more than 18,000 liters (4,755 gallons) of clean water and filter as much as 12 liters (3.4 gallons) per hour.

The hollow fiber membrane removes

  • 99.999% of viruses (Rota virus, Hepatitis A)
  • 99.9999% of bacteria (E. coli)
  • 99.9999% of parasites (Giardia, Cryptosporidium, etc.)
  • 99.999% of microplastics





  • Kit includes: Includes 5  liter gravity bag, with quick-connecting hose, purification cartridge and built-in backwashing system ,
  • Filtration technology: 0.02 micron hollow fiber membrane ultrafiltration cartridge
  • Purifier lifetime: 4,755 gallons (18,000 liters)
  • Flow Rate:12 liters/hr
  • Food grade materials (US FDA 21 CFR standards)
  • Roll bag capacity: 12 liters
  • Flow Rate: 12 liters/hr
  • Food grade materials (US FDA 21 CFR standards)
  • Weight (Filter and roll bag): 18.72oz (1.17 lbs)
  • Roll bag material: TPU laminated with nylon
  • Roll bag size: length 23.82” (included outlet) x diameter
  • Hose length: 27.55”
  • Filter size: 12.59’’
  • BPA Free
  • Recyclable


Lab Information

We believe that responsible manufacturing includes creating and maintaining a strong evidence base for our product claims and their intended impacts. All products undergo rigorous independent testing to meet or exceed protocols established by the US Environmental Protection Agency (EPA) and National Sanitation Foundation (NSF) We also built and run an ISO accredited water laboratory based in Vietnam that does quality validation and testing of all of our new and existing products.


  • Hollow fiber membrane filter: 0.02 micron pore size. Removes 99.999% of viruses, 99.999999% of bacteria, 99.999% of parasites, and 99.999% of microplastics.
  • Also removes turbidity (silt, sand, and cloudiness).
  • Meets US EPA drinking water standards for bacteria and protozoa reduction.
  • Meets highest, 3 star category based on testing under the World Health Organization household water treatment performance scheme
  • Purifier lifetime: 4,755 gallons (18,000 liters)
  • Flow Rate:12 liters/hr


Rated 5 out of 5 by from great product I liked this from the moment I first saw it - it solves the problem for staff roving trails in the nearby National Park having to carry excess water to help those who are out unprepared, with inadequate water for themselves. This Park has water sources near most trails, making this product a back-saver for the staff, and a potential life-saver for the unprepared visitors.
Date published: 2019-04-26
Rated 5 out of 5 by from Great filter! Bought two of these when they were on sale for our BIBO bags. Pack well and don't take too much room for something so vital in a disaster situation. Great construction. Looks like it was made to last. Perfect companion to our lifestraws.
Date published: 2019-03-25
Rated 5 out of 5 by from Excellent product We used the lifestraw mission in the mountains of Guatemala where there was plenty of water but none safe to drink without treatment. Worked wonderfully!!
Date published: 2019-03-09
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I help a young man in Kenya, his mother and sister were killed in a bus accident, so he is rising his 9 yr. old niece and 12 year old nephew. it is dry season and he walks a long distance for questionable water. which filter do you recommend.I send

Asked by: Kathy
Hi Kathy, We are deeply sorry to hear this tragic story but find it highly commendable that you are helping these people in need! While we do not know the particular water quality issues of that area of Kenya, the LifeStraw Community is used in almost all of our humanitarian efforts in that country. If you would like some more information, please email us at for more assistance.
Answered by: LifeStraw Help Desk
Date published: 2019-03-18
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