Business model: Mohamed is the founder of Ndox Mu Sell, a producer of water purification fountains that can be installed at individual levels in homes. The fountains are accessible, easy to transport and effective against heavy metals. They were created to allow the rural populations of the Kaffrine region to have access to drinkable water, thanks to a ceramic filter, easy to maintain and change. Since the beginning of the activities, Ndox Mu Sell has sold more than 115 fountains, reaching more than 570 people.