OMNI™ 3000 Air Sampler ECBC Test Summary

Edgewood Chemical Biological Center (ECBC), an agency of the U.S. Army Research, Development and Engineering Command, tested the performance of the OMNI 3000 air sampler over the course of two weeks in 2006. This data sheet summarizes the results detailed in the report of August 2006 entitled “Characteristics and Sampling Efficiencies of OMNI 3000 Aerosol Samplers,” publication ECBC-TN-028.

TEST SUMMARY
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University of Colorado

Experiments were performed by challenging two OMNI 3000 aerosol sampling devices, fitted with custom glass impingers, with pure culture stocks of airborne microorganisms and latex spheres. A consecutive series of five identical collection assessments was performed by independently aerosolizing known quantities of each of the following agents: Aspergillus fumigatus spores (mean aerodynamic diameter (MAD): 2.5 um), vegetative Bacillus subtilis cells (MAD: 1.25 um), and two types of fluorescein labeled latex beads (mean aerodynamic diameters of 0.5um and 2.5um). The challenges were executed at 25°C and 40% RH.

TEST SUMMARY
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