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lifestraw
LifeStraw Personal Water Filter
7.2/10 Good
LifeStraw Personal review. 1.6 oz, 4,000-liter life, under $15. Is the original straw filter still worth buying for hiking and emergency preparedness?
$15
Check Price on Amazon $20
Save $5
Last updated: 2026-04-08
Score Breakdown
Portability 9.5/10
Value 9.0/10
Features 5.0/10
Build Quality 7.0/10
Pros & Cons
What We Like
- Under $15 street price — cheapest standalone water filter available
- 1.6 oz is featherlight for any pack or emergency kit
- 4,000-liter filter life is generous for the price
- Dead-simple operation — just dip and sip
- No batteries, no moving parts, nothing to break
Watch Out For
- Straw-only design — cannot fill bottles or containers with filtered water
- Requires significant suction effort, especially as filter ages
- Cannot be backflushed to restore flow rate
- 0.2 micron pore size is less fine than 0.1 micron competitors
- Does not remove viruses, chemicals, or heavy metals
Full Specifications
| Filter Type | hollow fiber membrane |
| Weight Oz | 1.6 |
| Flow Rate | suck-through (no measured rate) |
| Filter Life Gallons | 1057 |
| Filter Life Liters | 4000 |
| Pore Size | 0.2 micron |
| Contaminants Removed | bacteria, protozoa, microplastics |
| Requires Power | false |
| Virus Removal | false |
| Bpa Free | true |
| Backflush Capable | false |
| Straw Only | true |
| Operating Temp | above freezing |
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