designer's own words:This water purifier is very simple ; - Solar power warm black part, where you put dirty water. - Black part warm dirty water and create vapor. - Solar UV ray neutralize some bacterias. - Dirt and other stuff stay in this part. - Vapor condens on coldest glass part. - Drips are created , and slip on conic surface, then fall inside center black tube. - Concentration of drip in white base part make clear amount of water that can be used for cooking, washing etc... - Every parts are just piled up. - Conic form avoid sliping when carried. - It can be made in every scales, smalest for home to bigest for country without drinking water.