||Effectiveness of vacuum cleaning on fungally contaminated duct materials /
Foarde, Karin K. ;
VanOsdell, D. W. ;
Chang, J. C. S.
||Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
|| U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory,
||EPA/600/A-98/047; NRMRL-RTP-P-314; EPA-R-822642
Space HVAC systems ;
Vacuum cleaners ;
Ventilation systems ;
Heating systems ;
Air conditioning ;
Fiberglass reinforced plastics ;
Air cleaning systems ;
Air pollution control ;
Indoor air quality
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||14 pages : illustrations ; 28 cm
The paper gives results of research to: determine, under constant temperature, relative humidity, and air flow test conditions, whether fungal spore levels on heating, ventilating, and air-conditioning (HVAC) duct material surfaces could be reduced substantially by thorough vacuum cleaning; and evaluate whether subsequent fungal growth would be limited or contained by a single mechanical cleaning treatment. Three fiberglass duct materials were tested. The results showed that notable amounts of surface dust were removed, and surface spore levels could be reduced in the short term on all materials by vacuuming. However, regrowth occurred within 6-12 weeks.
"EPA/600/A-98/047." "PB98-140239." "Presented at 2nd Biennial Conference, Engineering Solutions to IAQ Problems, Research Triangle Park, NC, 7/21-23/97." "John C.S. Chang, project officer." Microfiche.