Seychelle New Water Straw Radiological Advanced Extreme Filter Removes up to 99.99% of Chlorine, Chemicals (Voc&rsquo;s), Heavy Metals and Radiological Contaminants New Radiological Advanced / Extreme Filter Removes up to 99.99% of Chlorine, Chemicals (VOCs), Heavy Metals and Radiological Contaminants Removes up to 99.9999% of Bacteria and Virus and 99.9% of Giardia and Cryptosporidium Designed for anywhere disaster strikes; essential for emergencies, earthquakes, floods, fires, and nuclear catastrophies Portable, ready to use and Compact with a sleek case, great for those who travel or live an active lifestyle! The new radiological / advanced straw filter produces up to 25 gallons of great-tasting water!