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LifeStraw Water Filter Review

LifeStraw Water Filter Review
Brand and Model Platypus GravityWorks 4L
Pros Cheap and Very Simple
Cons No way to store clean water
Best Uses Day Hiking

1LifeStraw Water Filter Overview

The LifeStraw Water Filter is a 2 oz hollow-fiber water filter that you drink through; it is easy to use and inexpensive.

In the coming lines, we list the LifeStraw Water Filter features and performances like effectiveness, capacity, weight etc.


The LifeStraw is a hand-held personal water purification system able to remove 99.9% of the waterborne bacteria and Protozoa, such as Giardia but it doesn’t remove or neutralize viruses. So, if virus protection is a concern, you should use a water purification solution.


The LifeStraw water filter is very simple to use. In fact, you don’t really need bags, bottles or tubes; you uncap the ends, stick the LifeStraw bottom directly into a water source like a stream, or via a wide-mouth container and drink water through the straw.

If the filter is dry, let the bottom soak in water for about 30 second to moisten. When finishing, make sure to dry filter and recap the ends.

4Treatment Capacity

In terms of treatment capacity and storing, the main issue of LifeStraw Water Filter is that it does not allow you to store filtered water for later use. So, the LifeStraw may be good choice for only shorter hikes in some areas with plenty of water, if you plan for a long hiking experience you may choose other solution like Platypus GravityWorks 4L.


As we mention above, the LifeStraw Water Filter is easy and fast. You can stick the LifeStraw directly into a water source or you can fill a wide-mouth and drink from it via the LifeStraw.

6Weight and Packability

At only 2 ounces, the LifeStraw Water Filter is one of the lightest water filters on the market. It’s essentially easy to use, even if you don’t habitually use a water filter.

7Durability and Maintenance

The LifeStraw Water Filter can filter up to 1000 liters in its lifetime depending on sediment in the water and the amount of backflushing you do. In reality, organisms and sediment close the hollow fiber pores.

As a result, cleaning the LifeStraw regularly is very substantial to sustain the functionality of a water filter like this. Moreover the backflushing is easy enough, all you need to do is blow out the remaining water that’s in the hollow membrane filter onto the soil.

Last thing to mention in this section is not leaving the LifeStraw out in freezing temperatures as frozen water drops can damage the filter and render it useless.

8Pros and Cons


  • Cheap and Very Simple
  • No moving parts or extra equipments

  • No way to store clean water


  • Filter Type: Straw
  • Filter Medium: Hollow-fiber membrane
  • Removes: Bacteria and protozoa
  • Weight: 2.0 oz
  • Materials: ABS plastic
  • Dimensions: 1.2 x 8.8 in
  • Available colors: Blue
  • Filter Lifetime: Up to 1,000 liters
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