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Parham Azimi, Illinois Institute of Technology
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Dan Zhao, Illinois Institute of Technology
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Brent Stephens, Illinois Institute of Technology
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Exposure to ambient fine particles (PM2.5: particles < 2.5 μm in diameter) and ultrafine particles (UFPs: particles < 100 nm in diameter) has adverse effects on human health. Residential buildings greatly impact human exposure to outdoor particles because people spend more than 90% of their time indoors (and much of that time at home) and outdoor particles can infiltrate through building envelopes and mechanical ventilation systems with varying efficiencies. This paper will model the impact of various combinations of central forced air HVAC filtration and mechanical ventilation systems on indoor concentrations of fine and ultrafine particles of outdoor origin in three types of residential buildings (i.e., older, existing and new homes).
