Steripen Freedom

SteriPen Freedom water purifier

SteriPen Freedom water purifier     Photo: Courtesy of SteriPen

The latest iteration of SteriPen’s tiny (2.6-ounce) UV water purifier is the best yet. The Freedom can charge not only from the wall but also through a USB connection, letting you juice it up via a laptop or solar charger for 8,000 one-minute 16-ounce treatments.

Brand: Steripen $120

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