I am selling this because I no longer need it. 【Protecting the Drinking Water of Your Precious Family】The Auroraki Au-687 portable water purifier secures your family's drinking water in any situation, from outdoor fun to emergencies during disasters. It can transform water from rivers and streams during camping and mountain climbing, and even rainwater or leftover bathwater during emergencies, into safe drinking water with an astonishing 99.9999% removal rate. Despite its compact size, it boasts powerful performance, making it an essential disaster preparedness item to protect your family's lives. Please consider getting one. 【Reliable Quality Certified by the Ministry of Health, Labour and Welfare】To prove its reliable performance, Auroraki's disaster water purifier undergoes strict water quality testing by a third-party organization of the Ministry of Health, Labour and Welfare. It removes harmful substances such as E. coli and cholera bacteria at an astonishingly high rate of 99.9999% and confirms that it meets the water quality standards set by the Ministry of Health, Labour and Welfare. Moreover, it has excellent performance in leaving beneficial minerals for the human body. You can drink it with confidence in any situation with the proven safety certified by the test report. 【8000L Large Capacity & Ultra-Lightweight Compact Design】The Au-687 portable water purifier is equipped with a large-capacity filter that can purify up to approximately 8000 liters of water, while weighing only 63g, making it very lightweight. Its compact design (3.2 x 17.6 x 3.5cm) fits neatly into the gaps of disaster relief backpacks and emergency carry-out bags. When combined with the included water supply bag, it is easy to purify a large amount of water. It also supports a 28mm screw thread, making it convenient to attach directly to most plastic bottles in Japan. *Comes with a multi-functional emergency whistle. 【Emergency Water Purification Solution Recommended by Disaster Prevention Specialists & Mountain Climbing Pro Guides】In the event of disasters such as earthquakes, tsunamis, and typhoons, the first thing to secure is drinking water to sustain life. 【High-Efficiency Water Purification with Hollow Fiber Membrane Filter】This portable water purifier uses a hollow fiber membrane filter with ultra-fine pores of 0.01 microns. It effectively removes impurities in water, such as turbidity, rust, and bacteria including E. coli. No complicated operations are required. Simply draw water with the included suction tube, and you can immediately use clean water. No pump or electricity is required, so anyone can easily secure safe water even during a disaster.