The Aquapure Traveller, by Pure Hydration is just like a water bottle but its cap features a water purification system which uses M.A.D. (Mechanically Advanced Disinfection) Technology & it is completely chemical free. It filters & purifies water eliminating viruses & bacteria such as E-Coli, Polio, Hepatitis A, & others. It removes waterborne pathogens, including Giardia, Crytosporidium, etc. It removes toxic chemicals & heavy metals. It removes bad taste, odours & sediment. The 0.660 l bottle is made from hard durable plastic. You can use water from hotel & restaurant taps, standpipes streams or rivers. Its filter cap will purify an average of 350L during its lifetime, & is the only portable water purifier officially endorsed by the Hospital of Tropical Diseases London. Replacement water filters can be purchased separately. This method is really easy to use, there is no chemical involved or difficult procedure, just fill up the bottle & drink! By using the Aquapure Traveller, you could save the environment the disposal of the equivalent of 700 plastic bottles per filter. It is the perfect solution for holiday makers, adventurers, business travellers &, in fact, anyone who needs access to pure, fresh water anywhere in the world. Items are attractively packaged & suitable as a gift.