The LifeStraw Family 1.0 is a gravity-fed purifier sized for emergency household use or a multi-week trip, rated to 18,000 liters of lifetime filtration. 0.02-micron filter physically removes viruses (rare in a backcountry filter), bacteria, protozoa, and cysts. Meets EPA purifier standard. No batteries or chemicals. The pick when a one-bag emergency-prep purchase needs to also work for trip travel.
LifeStraw
Family 1.0 Portable Gravity Water Purifier
Shipping
1 retailer
At a glance6 specs
removes
Viruses, Bacteria, Protozoa, Cysts
no chemicals
Yes
power source
Gravity-fed (no batteries)
flow rate lpm
12
filter size microns
0.02
meets epa purifier standard
Yes
Where to buy
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Description
Last reviewed May 16, 2026
Full specifications
7 fields
| removes | Viruses, Bacteria, Protozoa, Cysts |
|---|---|
| no chemicals | Yes |
| power source | Gravity-fed (no batteries) |
| flow rate lpm | 12 |
| filter size microns | 0.02 |
| meets epa purifier standard | Yes |
| capacity liters total lifetime | 18000 |
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