When you are out in the back country, there are several ways to ensure that water is safe for drinking. Most hikers and campers resort to either boiling water or use chemical sterilization. Boiling water requires burning fuel and produces hot water that takes a lot of time to cool down. Chemical sterilization takes less time but leaves a strong aftertaste. The SteriPen Adventurer Opti Water Purifier uses UV light to zap micro-organism to make water safe to drink. It requires no heating and leaves no aftertaste in the water.
Using the SteriPen Adventurer Opti Water Purifier is as simple as dipping the UV end into a water container and pressing a button. As a safety precaution, the SteriPen can only be turned on when the UV lamp is inserted into water as UV light can be harmful to your eyes for example. It takes about 90 seconds to treat 1 liter of water. One set of batteries should be enough to treat about 50 liters of water.
The SteriPen Adventurer Opti Water Purifier can also be used as a normal LED flashlight. The UV element can be turned off leaving just normal light.
Buy from Amazon