LifeStraw Water Filters & Purifiers
The LifeStraw water filters and purifiers collection at Kathmandu provides essential gear for safety and independence on the trail. Using revolutionary filtration technology, LifeStraw products remove bacteria, protozoa, and microplastics from natural water sources, ensuring you have access to clean, safe drinking water, no matter where your journey takes you.
From the original personal straw filter, perfect for emergency use and ultralight hiking, to the high-capacity bottles and gravity bags for base camps and groups, LifeStraw gives you the confidence to drink directly from lakes, streams, and rivers. Lightweight, easy to use, and highly effective, LifeStraw is a non-negotiable item for any serious backpacker, camper, or traveller.
Safe Water, Anywhere
The Power of Hollow Fibre Membrane Technology
LifeStraw products use a hollow fibre membrane microfiltration technology. This membrane contains microscopic pores (typically 0.2 microns) that physically block and trap waterborne bacteria and protozoa, including E. coli and Giardia. Clean water passes through while contaminants are trapped, providing a safe drink instantly.
Filters vs. Purifiers
It is important to note the difference: Filters remove bacteria, protozoa, and microplastics. Purifiers (which LifeStraw also offers in some models) go a step further, often using a secondary element like activated carbon or chemical treatment to remove viruses and heavy metals, offering the highest level of protection in high-risk areas.
Frequently Asked Questions (FAQs)
Q: How do I know when my LifeStraw is finished?
A: The original LifeStraw personal filter stops allowing water to pass through when the membrane is full, indicating it has reached its filtration capacity (typically 4,000 litres). Other bottle systems use a visible indicator.
Q: Do LifeStraw filters change the taste of the water?
A: While the filter removes biological contaminants, the added activated carbon element in many LifeStraw bottles and purifiers is designed to reduce chlorine, bad taste, and organic chemical matter, improving the water’s flavour.
Q: Can I use a LifeStraw to filter salt water?
A: No. Standard LifeStraw products do not remove salt from water, nor do they remove heavy metals or viruses (unless specifically marked as a purifier).
Q: How should I store my LifeStraw long-term?
A: It is vital to backwash and thoroughly dry your filter before long-term storage, as residual moisture can allow mould or bacteria to grow. Follow the manufacturer's specific cleaning instructions for storage preparation.
