An obstruction of the airway caused by a foreign body or by choking occurs when a piece of food or an object becomes accidentally trapped in the respiratory tracts, preventing air from reaching the lungs. Early recognition of the situation and prompt action by those nearby can prevent the victim from suffocating and avoid a fatal outcome. Choking is a medical emergency that requires immediate treatment. With the SOSrespira app you will learn how to identify and deal with a foreign body obstructing the airway in victims of all ages (adults, children and infants). SOSrespira uses videos and diagrams to provide you with a simple guide to learning the correct sequence of actions and maneuvers to resolve cases of choking. SOSrespira is based on the latest International Guidelines for Cardiopulmonary Resuscitation issued by the European Resuscitation Council (ERC) and the American Heart Association (AHA), published in October 2015. SOSrespira could be especially useful for parents, carers and anybody working in the hospitality industry, senior citizen and education centers, all environments in which there is a greater possiblity of witnessing someone choking. Healthcare professionals and teachers can also use it as a support tool in their classes. This theoretical knowledge is no substitute for appropriate and regular practical training in Life Support, but it could help you to save lives. This initiative forms part of the accident prevention programs promoted and led by FUNDACIÓN MAPFRE. SOSrespira was designed by specialists associated with the Spanish Society of Emergency Medicine (SEMES) and Fundación Mapfre. It is endorsed by the Spanish Council of Cardiopulmonary Resuscitation (CERCP) and the Spanish Society of Emergency Medicine (SEMES).