Source avec lien : Journal of Occupational and Environmental Hygiene, 19(5). 10.1080/15459624.2022.2058701
La directive COVID-19 sur le chauffage, la ventilation et la climatisation a permis d’optimiser les systèmes de ventilation existants, de fixer des limites à la durée d’occupation et de définir des périodes de dégagement pour un espace donné. La modélisation de la transmission des aérosols a été largement utilisée pour déterminer les limitations d’espace afin de réduire le potentiel de transmission des aérosols dans divers espaces de travail de fabrication, de laboratoire, d’entrepôt, d’avion et d’administration.
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.