Native Egyptian man smoking a hookah or shisha, a traditional Middle Eastern or South Asian device for smoking which operates by water-filtration and indirect heat. It is designed with a long tube passing through an urn of water that cools the smoke as it is drawn through. It can be used for smoking many substances, such as herbal fruits. Depending on locality, hookahs are known variously as a water pipe, nargeela/nargile/narghile/nargileh, argeela/arghileh, shisha/sheesha, okka, kalyan, or ghelyoon or ghalyan.