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Technical Note

Safe and Effective Use of Ozone as Air and Surface Disinfectant in the Conjuncture of Covid-19

1
ICS Maugeri Spa SB, Environmental Research Centre, Via Atene, 9, 35010 Perarolo di Vigonza (PD), Italy
2
INAIL (Italian Workers’ Compensation Authority), Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Via di Fontana Candida, 1, 00078 Monte Porzio Catone (RM), Italy
*
Author to whom correspondence should be addressed.
Gases 2021, 1(1), 19-32; https://doi.org/10.3390/gases1010002
Received: 12 November 2020 / Revised: 8 December 2020 / Accepted: 21 December 2020 / Published: 24 December 2020
The present paper extrapolates quantitative data for ozone virucidal activity on the basis of the available scientific literature data for a safe and effective use of ozone in the appropriate cases and to explore the safety measures developed under the stimulus of the current emergency situation. Ozone is a powerful oxidant reacting with organic molecules, and therefore has bactericidal, virucidal, and fungicidal actions. At the same time, it is a toxic substance, having adverse effects on health and safety. Its use is being proposed for the disinfection of workplaces’ and public places’ atmosphere, and for disposable masks and personal protective equipment disinfection for reuse, with particular reference to the COVID-19 pandemic outbreak. Ozone can be generated in situ by means of small, compact ozone generators, using dried ambient air as a precursor. It should be injected into the room that is to be disinfected until the desired ozone concentration is reached; after the time needed for the disinfection, its concentrations must be reduced to the levels required for the workers’ safety. The optimal use of ozone is for air and surface disinfection without human presence, using a concentration that is effective for the destruction of viruses, but not high enough to deteriorate materials. View Full-Text
Keywords: SARS-CoV-2; ozone generators; sanification; disinfection; virucidal efficacy; occupational exposure; personal protective equipment SARS-CoV-2; ozone generators; sanification; disinfection; virucidal efficacy; occupational exposure; personal protective equipment
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MDPI and ACS Style

Grignani, E.; Mansi, A.; Cabella, R.; Castellano, P.; Tirabasso, A.; Sisto, R.; Spagnoli, M.; Fabrizi, G.; Frigerio, F.; Tranfo, G. Safe and Effective Use of Ozone as Air and Surface Disinfectant in the Conjuncture of Covid-19. Gases 2021, 1, 19-32. https://doi.org/10.3390/gases1010002

AMA Style

Grignani E, Mansi A, Cabella R, Castellano P, Tirabasso A, Sisto R, Spagnoli M, Fabrizi G, Frigerio F, Tranfo G. Safe and Effective Use of Ozone as Air and Surface Disinfectant in the Conjuncture of Covid-19. Gases. 2021; 1(1):19-32. https://doi.org/10.3390/gases1010002

Chicago/Turabian Style

Grignani, Elena, Antonella Mansi, Renato Cabella, Paola Castellano, Angelo Tirabasso, Renata Sisto, Mariangela Spagnoli, Giovanni Fabrizi, Francesco Frigerio, and Giovanna Tranfo. 2021. "Safe and Effective Use of Ozone as Air and Surface Disinfectant in the Conjuncture of Covid-19" Gases 1, no. 1: 19-32. https://doi.org/10.3390/gases1010002

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