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AIR CLEANERS FOR INDOOR AIR POLLUTION CONTROL (CHAPTER 10)
Citation:
Viner, A., K. Ramanathan, J. Hanley, D. Smith, D. Ensor, AND L. Sparks. AIR CLEANERS FOR INDOOR AIR POLLUTION CONTROL (CHAPTER 10). U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-91/223 (NTIS PB91242446), 1991.
Description:
The chapter describes an experimental study to evaluate performance characteristics of currently available controls for indoor air pollutants, including both particles and gases. he study evaluated the particle-size-dependent collection efficiency of seven commercially available devices for particulate control: ommon furnace filter, four industrial filters, and two electronic air cleaners (EACs). he furnace filter had negligible effect on particles with diameters between 0.1 and 1 micrometer. he industrial filters, with ASHRAE ratings of 95, 85, 65, and 40% showed minimum efficiency at about 0.1 micrometer which was substantially less than the ASHRAE efficiency. ne EAC, essentially a furnace filter with a high voltage electrode, reached a maximum efficiency of 30% at low flowrates (7 cu m/ min); however, it had a negligible effect at higher flowrates. he other EAC, similar to an industrial ESP, showed efficiencies of 80-90% over the entire size range at low to moderate flowrates. he highest flowrate, a minimum efficiency was detected at 0.35 micrometer. he study also evaluated the suitability of commercially available carbon-based sorbents (wood, coal, and coconut) for removing low concentrations of volatile organic compounds (benzene, acetaldehyde, and 1,1,1-trichloroethane).
