Never stress about drinking potentially contaminated water ever again, thanks to Purewell's Outdoor Personal Water Filtration Straw. Delivering fresh water instantly, users dip the bottom of the device into a body of water and sip from the top. Whether you're camping, on a nature hike, or in an emergency, you can feel confident that the Outdoor Personal Water Filtration Straw will filter 99.9999% of the tiny material, cysts, particulates, and sediments.