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On the Optimal Indoor Air Conditions for SARS-CoV-2 Inactivation. An Enthalpy-Based Approach

1
Department of Enterprise Engineering, Tor Vergata University of Rome, 00133 Rome, Italy
2
Department of Biomedicine and Prevention, Tor Vergata University of Rome, 00133 Rome, Italy
3
Department of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, 00184 Rome, Italy
4
Department of Industrial Engineering, Tor Vergata University of Rome, 00133 Rome, Italy
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(17), 6083; https://doi.org/10.3390/ijerph17176083
Received: 9 July 2020 / Revised: 4 August 2020 / Accepted: 18 August 2020 / Published: 21 August 2020
(This article belongs to the Section Infectious Disease Epidemiology)
In the CoViD-19 pandemic, the precautionary approach suggests that all possible measures should be established and implemented to avoid contagion, including through aerosols. For indoor spaces, the virulence of SARS-CoV-2 could be mitigated not only via air changes, but also by heating, ventilation, and air conditioning (HVAC) systems maintaining thermodynamic conditions possibly adverse to the virus. However, data available in literature on virus survival were never treated aiming to this. In fact, based on comparisons in terms of specific enthalpy, a domain of indoor comfort conditions between 50 and 60 kJ/kg is found to comply with this objective, and an easy-to-use relationship for setting viable pairs of humidity and temperature using a proper HVAC plant is proposed. If confirmed via further investigations on this research path, these findings could open interesting scenarios on the use of indoor spaces during the pandemic. View Full-Text
Keywords: SARS-CoV-2; CoViD-19 pandemic; indoor air quality; specific enthalpy of moist air; HVAC systems setting SARS-CoV-2; CoViD-19 pandemic; indoor air quality; specific enthalpy of moist air; HVAC systems setting
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MDPI and ACS Style

Spena, A.; Palombi, L.; Corcione, M.; Carestia, M.; Spena, V.A. On the Optimal Indoor Air Conditions for SARS-CoV-2 Inactivation. An Enthalpy-Based Approach. Int. J. Environ. Res. Public Health 2020, 17, 6083. https://doi.org/10.3390/ijerph17176083

AMA Style

Spena A, Palombi L, Corcione M, Carestia M, Spena VA. On the Optimal Indoor Air Conditions for SARS-CoV-2 Inactivation. An Enthalpy-Based Approach. International Journal of Environmental Research and Public Health. 2020; 17(17):6083. https://doi.org/10.3390/ijerph17176083

Chicago/Turabian Style

Spena, Angelo, Leonardo Palombi, Massimo Corcione, Mariachiara Carestia, and Vincenzo A. Spena 2020. "On the Optimal Indoor Air Conditions for SARS-CoV-2 Inactivation. An Enthalpy-Based Approach" International Journal of Environmental Research and Public Health 17, no. 17: 6083. https://doi.org/10.3390/ijerph17176083

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