LifeStraw Mission

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


LifeStraw Mission


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 or 12 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 12 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 or 12  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
  • Weight (Filter and roll bag): 18.72oz (1.17 lbs)
  • Roll bag material: TPU laminated with nylon
  • 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.
  • Purifier lifetime: 4,755 gallons (18,000 liters)
  • Flow Rate: 12 liters/hr
  •  EPA Est. No. 95395-KOR-1
  • WARNING: Cancer and reproductive harm. Learn more


Is there a way to buy a replacement bag as mine was chewed through by mice?

Asked by: DmitryP
Hi there. We don't currently sell the replacement bags, but if you send us an email to, we will help you solve this.
Answered by: lifestraw
Date published: 2018-10-24

Does this filter remove heavy metals and/or chlorine/bromine?

Asked by: Crepidula
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