The LifeStraw is the ultimate personal water filter for backpacking, camping, and emergency kits. With its ability to filter 264 gallons to 0.2 microns without pumping or chemicals, it meets U.S. EPA drinking water standards. This award-winning filter is made with BPA-free materials, small, and lightweight enough to carry easily (9"x1" and 2 oz.). It removes minimum 99.9999% of waterborne bacteria (>LOG 6 reduction) and minimum 99.9% of waterborne protozoan parasites (>LOG 3 reduction) and filters up to 1000 liters of contaminated water without iodine, chlorine, or other chemicals. Plus, it comes in a sealed bag, perfect for storing for emergencies. Trust the LifeStraw - millions of people around the world have used it since 2005.