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For wilderness trips, where protozoa and bacteria are main concerns, pumps and filters will work fine. For maximum protection, especially when near human development, look to one that neutralizes all biological con- taminants, including viruses. Final point: The old-fashioned


trick of boiling water on a campfire is a foolproof—and effective—purifica- tion plan. Plus, it’s essentially free. ¿


Outdoors writer STEPHEN REGENOLD is founder and editor of GearJunkie.com.


KATADYN MYBOTTLE $49.95, katadyn.com Dip this 24-ounce bottle in water, screw the cap and purification system back on, and squeeze the bottle to purify and drink in one motion. That’s the simplicity of Katadyn’s MyBottle, a common bike bottle with a built-in filter. The bottle’s filter eliminates viruses, bacteria, and


cysts. Bonus: It has a carbon cartridge to neutralize water and nix the not-so-pleasant swampy aftertaste you might get with a wilderness drink.


CLEANSTREAM GRAVITY FILTER $99.95, cascadedesigns.com/platypus Touting “no moving parts, no assembly, and near-zero effort,” the CleanStream is a unique filter for in-camp use. Hang it up and let gravity do the work. Water trickles from one reservoir to the other, passing through a filter for purification along the way. It can handle four liters of water every 2.5 minutes, making it fast and easy. Like the MSR pump, the CleanStream handles all protozoa and bacteria, but not viruses, making it suitable for wilderness use.


JOHN R. FULTON JR.


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