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References

Bahnfleth, W.P. and Kowalski, W.J. “Airborne-Microbe Filtration in Indoor Environments.” Accessed: December 15, 2009.

UPMC Center for Biosecurity. “Minimum Efficiency Reporting Value (MERV).” Accessed: December 15, 2009.

U.S. Environmental Protection Agency. “The Inside Story: A Guide to Indoor Air Qualtiy.” Accessed: December 17, 2009.