COVID-19 aerosol transmission modeling in support of company HVAC guideline

A company COVID-19 Heating, Ventilation, and Air Conditioning Guideline was implemented globally, as part of a larger control measure toolset, to minimize the potential for SARS-CoV-2 aerosol transmission. The COVID-19 Heating, Ventilation, and Air Conditioning Guideline informed and provided the pr...

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Bibliographic Details
Published in:Journal of occupational and environmental hygiene 2022-05, Vol.19 (5), p.327-334
Main Authors: Oberlin, Ty J., DuBois, Cheryl K., Sheppard, Mike, Quam, Jodi D., Kramer, Amanda J., Logan, Perry W., Murphy, Michael J.
Format: Article
Language:English
Subjects:
Aerosols
Air conditioning
Air Pollution, Indoor - prevention & control
Airborne transmission
Coronaviruses
COVID-19
Disease transmission
exposure modeling
Heating
Humans
Modelling
SARS-CoV-2
Severe acute respiratory syndrome
Severe acute respiratory syndrome coronavirus 2
Ventilation
Viruses
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Summary:A company COVID-19 Heating, Ventilation, and Air Conditioning Guideline was implemented globally, as part of a larger control measure toolset, to minimize the potential for SARS-CoV-2 aerosol transmission. The COVID-19 Heating, Ventilation, and Air Conditioning Guideline informed and provided the process to optimize existing ventilation systems, set occupancy duration limits, and set clearance periods for a given space. Aerosol transmission modeling was used extensively to determine space limitations to reduce the potential for aerosol transmission in various manufacturing, lab, warehouse, aircraft, and administrative workspaces. This paper focuses on the modeling completed for administrative spaces (e.g., offices, conference rooms, restrooms, elevators) due to their lower ventilation rates, higher occupant densities, and greater vocalization levels. A detailed description of how the Guideline was implemented, with examples showing the evaluation and determinations made for specific spaces, is provided. World-wide implementation of this Guideline, as one of the layers of protection, was a key component in the overall strategy to reduce aerosol transmission of the SARS-CoV-2 virus.
ISSN:1545-9624
1545-9632
DOI:10.1080/15459624.2022.2058701