Author: Nazaroff, William W
Title: Indoor bioaerosol dynamics Document date: 2014_12_27
ID: 6cargkwy_38
Snippet: Building air exchange may be divided into three modes: Infiltration refers to the uncontrolled leakage of air through the building envelope; natural ventilation occurs through windows and other designed openings; and fans induce mechanical ventilation. Buildings generally leak, so infiltration is regularly a contributor to air exchange. Although practices vary and are changing with time, it is common in the United States for air exchange in singl.....
Document: Building air exchange may be divided into three modes: Infiltration refers to the uncontrolled leakage of air through the building envelope; natural ventilation occurs through windows and other designed openings; and fans induce mechanical ventilation. Buildings generally leak, so infiltration is regularly a contributor to air exchange. Although practices vary and are changing with time, it is common in the United States for air exchange in single-family dwellings to occur by a combination of natural ventilation plus infiltration. Mechanical ventilation plus infiltration is common in commercial buildings.
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