Addressing COVID-19 contagion through the HVAC systems by reviewing indoor airborne nature of infectious microbes: Will an innovative air recirculation concept provide a practical solution?
Aerosols
COVID-19 spread
Coronavirus disease
HVAC systems
Public health
Ventilation systems
Journal
Environmental research
ISSN: 1096-0953
Titre abrégé: Environ Res
Pays: Netherlands
ID NLM: 0147621
Informations de publication
Date de publication:
08 2021
08 2021
Historique:
received:
09
01
2021
revised:
22
03
2021
accepted:
11
05
2021
pubmed:
19
5
2021
medline:
16
6
2021
entrez:
18
5
2021
Statut:
ppublish
Résumé
As the world continues to grapple with the reality of coronavirus disease, global research communities are racing to develop practical solutions to adjust to the new challenges. One such challenge is the control of indoor air quality in the COVID-19 era and beyond. Since COVID-19 became a global pandemic, the "super spread" of the virus has continued to amaze policymakers despite measures put in place by public health officials to sensitize the general public on the need for social distancing, personal hygiene, etc. In this work, we have reviewed the literature to demonstrate, by investigating the historical and present circumstances, that indoor spread of infectious diseases may be assisted by the conditions of the HVAC systems. While little consideration has been given to the possibility of indoor airborne transmission of the virus, the available reports have demonstrated that the virus, with average aerodynamic diameter up to 80-120 nm, is viable as aerosol in indoor atmosphere for more than 3 h, and its spread may be assisted by the HVAC systems. Having reviewed the vulnerability of the conventional ventilation systems, we recommend innovative air circulation concept supported by the use of UVGI in combination with nanoporous air filter to combat the spread of SARS-CoV-2 and other harmful microbes in enclosed spaces.
Identifiants
pubmed: 34004171
pii: S0013-9351(21)00623-X
doi: 10.1016/j.envres.2021.111329
pmc: PMC8123526
pii:
doi:
Substances chimiques
Aerosols
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
111329Informations de copyright
Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.
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