期刊
ENVIRONMENTAL RESEARCH
卷 199, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.envres.2021.111329
关键词
Coronavirus disease; COVID-19 spread; Public health; HVAC systems; Ventilation systems; Aerosols
资金
- Qatar Environment and Energy Research institute (QEERI), Hamad bin Khalifa University (HBKU) (member of Qatar Foundation)
- Qatar National Research Fund, Doha, Qatar [NPRP12C-0821-190017]
The article discusses the potential impact of HVAC systems on indoor transmission of infectious diseases, and recommends the use of an innovative air circulation concept combining UVGI with nanoporous air filters to combat virus spread.
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.
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