Abstract
This article will review the processes utilized to develop simple effective containment engineering controls. Short-Term Use Biocontainment Bubbles-Yale (STUBB-Ys), as Yale refers to them, were designed, built, tested, and implemented to protect members of the Yale University community from exposure to SARS-CoV-2 aerosols. STUBB-Ys were designed and created in conjunction with end users, constructed by Environmental Health and Safety (EHS) or partner groups, and tested onsite after installation to verify effective operation and containment. A wide variety of devices in different settings were developed and installed. STUBB-Ys were used at COVID-19 indoor test centers, laboratories, and clinics. The devices were pursued to create infection prevention measures where existing processes could not be utilized or were inadequate. Each STUBB-Y was tested with a C-Breeze Condensed Moisture Airflow Visualizer to generate smoke and a Fluke 985 Particle Counter, which gives the particle counts from 0.3 to 10 μm to measure particle escape visually and quantitatively. Airflow rates were also tested where applicable with a TSI VelociCalc 9525 Air Velocity Meter. Students and faculty were able to safely continue vital research or clinical study in the targeted areas with the addition of these simple containment devices to confine aerosols. From a biorisk management point of view, EHS was able to confine aerosols at their potential source using simple designs and equipment and adhering to the hierarchy of controls. This article demonstrates how a straightforward design process can be used to enhance worker protection during a pandemic.
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More From: Applied biosafety : journal of the American Biological Safety Association
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