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Geared toward those who are new to accreditation, this session provides an overview of the Joint Commission survey process. This presentation was recorded in July 2013.

A building’s HVAC system is designed to perform several tasks: filter, cool, heat, humidify, dehumidify, pressurize, and/or exhaust. Each of these tasks affects indoor air quality. For example, if incom­ing air is not properly filtered, excessive dust from the outdoors is drawn into the building. If supplied air is not conditioned or heated satisfactorily, occupants may experience thermal discomfort. If supplied air is not dehumidified appropriately, excessive relative humidity levels may promote microbial growth.

Positive vs Negative Operating room and protective isolation = Positive Airborne isolation = Negative When the total CFM from supply air (1&2) > than the return air (3), the room is under positive pressure and the air will flow out of the room. When the CFM from the return air (3) > than the supply air (1&2), the room is under negative pressure and the air will flow into the room