The “Lifesaver Bottle” filters water-borne pathogens, uses holes just 15 nanometers across, to prevent even the smallest viruses (25 nanometers across) getting through, and eliminates the need for chemicals to treat the water. The Lifesaver Bottle is fitted with a 4000UF replaceable purification cartridge that removes bacteria, viruses, cysts, parasites, fungi, and all other microbiological water-borne pathogens  

http://www.futuretimeline.net/21stcentury/2010-2019.htm