Acoustic comfort is one of the important environmental determinants in health institutions, especially hospitals, through which sustainability standards can be achieved. Higher than normal noise values in hospitals lead to many disadvantages affecting both patients and staff of these institutions, thus creating problems and obstacles that make the building sustainable. . Through this research, we aim to study the impact of barriers (fences) in reducing noise levels in hospital buildings in order to reach permissible values according to international standards. At the beginning of the research, the definition of sustainability in general was addressed, then sustainability in hospitals and divided into environmental, social and economic elements, and focusing on the factor of the acoustic comfort element and its importance and impact in creating a sustainable environment in health buildings, and sustainability standards in hospitals were determined and classified according to their function. After that, the acoustic comfort in hospitals and their rates were defined according to regional and international standards, and the impact of noise on patients and hospital staff was clarified. At the end of the research, many results and recommendations were reached that can be applied to reduce noise values and from reaching a sustainable health building. ................Key Wards:.............. Sustainable, Hospital, Noise, Building, Architecture.