If you need more than just a straw to gulp down your water, than the you’ll feel safe in the news that the Lifesaver Bottle 4000 Ultra Filtration Water Bottle eliminates all microbiological water-borne pathogens from water without chemicals. The bottle uses replaceable filters, which can treat up to 4,000 litres of water and will treat 0.75 litres of water in just under a minute.