You are going to need to drink plenty of clean water and this Life Saver Jerry can filters all bacteria, viruses, cysts, parasites, fungi and all other microbiological pathogens without the aid of chemicals. It complies with all British, US and European drinking water regulations and comes complete with a replaceable cartridge, instruction manual and silicon grease and has a service rating of up to 20,000 litres of water. The Life Saver Jerry Can is priced at £282.66.