 |
Thad Ptak, Ph.D., A. O. Smith Corporation |
Indoor air pollution is an environmental health risk. The methods of reducing concentration of indoor contaminants vary, depending on the design of the air cleaning device, its location and on the contaminant phase. Air cleaning devices can be categorized by the type of contaminant that they remove, particulate and gas phase. This presentation covers recent studies of various filtration methods and their effectiveness in removal of particulate and gas phase pollutants. Test methods used to assess the performance of air cleaning devices are presented and their applicability to various contaminants is discussed.