Gear junkie: Water purifier shrinks for easier portability
For the past couple years, while backpacking in the wilderness and on international trips, I have relied on a device called the SteriPEN to purify water. The battery-power “pen” emits UV light that destroys bacteria, viruses and protozoa such as giardia and cryptosporidium to provide “germ-free” water with the press of a button.
Sounds like magic, I know. But the SteriPEN (www.steripen.com) is actually just a scaled-down version of the same kind of UV-light purification system that many municipalities in the United States employ to treat mass quantities of water.
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