National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Title/Authors	Accession Number	Publication Year	Page Count
Pilot Study to Evaluate the Impact of Air Duct Cleaning on Indoor Air Quality in Residences. Kulp, R. N; Fortmann, R. C; Gentry, C; VanOsdell, D; Foarde, K; Hebert, T; Krell, B; Cochrane, C.	PB98140296	1998	12 pages
Pilot Air Conveyance System Design, Characterization, and Cleaning. VanOsdell, D. W; Foarde, K. K; Fortmann, R. C; Kulp, R. N.	PB98140387	1996	14 pages
Phase I Pilot Air Conveyance System Design, Cleaning, and Characterization. VanOsdell, D. W; Foarde, K. K; Fortmann, R.	PB97189682	1997	90 pages
Results of a Pilot Field Study to Evaluate the Effectiveness of Cleaning Residential Heating and Air Conditioning Systems and the Impact on Indoor Air Quality and System Performance. Fortmann, R; Gentry, C; Foarde, K; VanOsdell, D.	PB98142011	1997	236 pages