Lifestraw is an essential device for any hiker, camper, mountaineer or adventurer. The award-winning personal water filter enables users to drink water safely from contaminated water sources. So, if you’re lost in the woods or mountain an have no more water supply, Lifestraw provides you with safe, clean drinking water in any situation. LifeStraw doesn’t require any batters, and there are absolutely no chemicals or moving parts to work with. Give the device approximately 3 to 5 seconds, and begin sucking to start the flow of water through the device. The LifeStraw can filter up 264 gallons, and removes 99.99% of waterborne bacteria and waterborne protozoan parasites.