SYMPOSIA PAPER Published: 01 January 1989

Comparison of Effects of Ventilation, Filtration, and Outdoor Air on Indoor Air at Telephone Office Buildings: A Case Study


Environmental contaminants can cause failures in telephone switching systems, computers, and other sophisticated electronic equipment. Unfortunately, energy conservation measures frequently increase the indoor concentrations of such contaminants. For almost six years we have been conducting detailed air sampling programs at telephone offices across the United States. This paper outlines the design and procedures used to monitor indoor air quality at these sites. The goal has been to assess the effects of ventilation, filtration, outdoor sources, and indoor sources on the composition of indoor air at representative telephone office buildings. These studies provide direction so that energy conservation measures can be implemented in such a way as to minimize resulting environmentally related failures, and, thereby, the labor and parts needed to correct such failures.

Author Information

Weschler, CJ
Bell Communications Research, Red Bank, NJ
Shields, HC
Bell Communications Research, Red Bank, NJ
Kelty, SP
Bell Communications Research, Red Bank, NJ
Psota-Kelty, LA
AT&T Bell Laboratories, Murray Hill, NJ
Sinclair, JD
AT&T Bell Laboratories, Murray Hill, NJ
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Developed by Committee: D22
Pages: 9–34
DOI: 10.1520/STP10142S
ISBN-EB: 978-0-8031-5070-6
ISBN-13: 978-0-8031-1176-9