The emergence of respiratory diseases and pandemics through history such as the severe acute respiratory disease (SARS), the Spanish flu, and the current Covid-19 epidemic highlight the importance of ventilation in the transmission of airborne diseases. This research examines the buildings in Lebanon converted for hosting the cases of the Covid-19, focusing on the three pillars of sustainability which are the economic-social and environmental. This pandemic is affecting all the countries in the world, and concerns have risen about future epidemics that can cause the death of the population. In ...