Gear Guide 2012: SteriPen Freedom Water Treatment

Light, compact, and easy to use, the Freedom treats water in seconds with just a push of a button.

[water treatment]

Last year’s Editors’ Choice-winning Adventurer Opti set the standard for reliable and packable water treatment. The Freedom is even lighter, more compact, and easier to use. Employing ultraviolet light, it treats a half-liter of water in 48 seconds, and you don’t even have to push a button: Just dip the UV lamp into the water and swirl. $119; 2.6 oz.;