Upon first use or anytime the filter is dry,
uncap both ends and stand it up in safe water
(keeping mouthpiece out of water and dry) for
20 seconds to allow water to prime the filter.
Then take 5 quick sips to get water flowing.
When returning from a hiking trip, rinse with
safe tap water, uncap both ends, and let dry
before placing it away in storage.
CAUTION
Drinking untreated water may expose you to
harmful microorganisms and increase your risk
of gastrointestinal illness. Improper usage of
LifeStraw® increases your risk of exposure to
harmful microorganisms and increases your
risk of gastrointestinal illness. Reduce your risk
of becoming sick by following these safety
instructions and by educating yourself on
backcountry water safety. Never use
LifeStraw® to filter seawater or chemically
contaminated water, including water from
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