![]() ![]() Most of the return air is exhausted from the building, but a certain amount may be recirculated mixed with incoming air. The air is then conditioned for proper temperature and humidity level before being circulated as indoor supply air. The outdoor air and recirculated air first pass through filter banks that strain airborne pollutants and contaminants from the outside. Humidity control mechanisms (i.e., humidity control in summer, humidification in winter).The HVAC system for clinical and medical facilities consist of the following: The regulations represent a consensus of different government agencies, including Department of Health and Human Services, Department of Labor, OSHA, as well as professional bodies like the ASHRAE, the American Society for Healthcare Engineering (ASHE), and accrediting organizations like the Joint Commission on Accreditation of Healthcare Organizations. This includes ventilation rates, temperature levels, humidity levels, pressure relationships, and minimum air changes per hour. The indoor air quality standard for healthcare facilities is governed by the American Institute of Architects (AIA). These can range from the temperature level to the amount of humidity to air changes per hour. Some parts of the hospital such as ER, burn units and recovery wards have specific ventilation requirements. Incoming air must be filtered to more stringent standards compared to other commercial buildings. Patients with respiratory illnesses require cleaner air supply than regular healthy people. That is why all exhaust needs to be properly treated and sanitized. The Importance of Ventilation in HospitalsĪdequate ventilation and filtered makeup air supply are important for hospitals and clinics due to the following:īacteria and pathogens that cause infectious diseases need to be controlled. In this article, we discuss the standards and requirements for hospital makeup air, HVAC and ventilation systems. One of the most stringent requirements is for the clinical and medical field. ![]() Indoor ventilation follows a set of building codes and standards, which vary depending on the type of building and industry. ![]()
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