Evaluation of Carpet Steam and Heat Cleaners as Biological Sampling Devices
Technical Report,01 Mar 2010,31 Dec 2012
ECBC, ATTN: RDCB-DRB-D//DRI-T APG United States
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The efficacies of three types of carpet cleaners were evaluated as possible sampling devices for biological contaminants such as Bacillus anthracis spores. Residential, commercial, and industrial carpet cleaners were compared for their effectiveness in sampling contaminants. Room-size carpet pieces 8 10 ft were inoculated with aerosolized B. globigii spores. Uniform deposition of aerosol spores across carpet surfaces was confirmed using core samples and reference coupon analyses. The industrial unit was the most-effective carpet cleaner recovering 7080 of the inoculated spores. Re-aerosolization of sporesduring sampling was above the infectious dose. The potential use of industrial carpet cleaners as sampling devices is regarded as an important step forward in dealing with wide-area biological consequence management. Additional work is needed to develop this approach into a valuable, readily available sampling capability and to evaluate its applicability for decontamination.