Inactivation of Human Coronavirus by FATHHOME’s Dry Sanitizer Device: Rapid and Eco-Friendly Ozone-Based Disinfection of SARS-CoV-2
The pandemic of SARS-CoV-2/COVID-19 was reported in December 2019 in Wuhan, China. Pertaining to its high transmissibility and wide host adaptability, this unique human coronavirus spread across the planet inflicting 115 million people and causing 2.5 million deaths (as of March 3rd, 2021). Limited...
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| Format: | Article |
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MDPI AG
2021-03-01
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| Series: | Pathogens |
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| Online Access: | https://www.mdpi.com/2076-0817/10/3/339 |
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| author | Timsy Uppal Amir Khazaieli Antoine M. Snijders Subhash C. Verma |
| author_facet | Timsy Uppal Amir Khazaieli Antoine M. Snijders Subhash C. Verma |
| author_sort | Timsy Uppal |
| collection | DOAJ |
| description | The pandemic of SARS-CoV-2/COVID-19 was reported in December 2019 in Wuhan, China. Pertaining to its high transmissibility and wide host adaptability, this unique human coronavirus spread across the planet inflicting 115 million people and causing 2.5 million deaths (as of March 3rd, 2021). Limited or negligible pre-existing immunity to multiple SARS-CoV-2 variants has resulted in severe morbidity and mortality worldwide, as well as a record-breaking surge in the use of medical-surgical supplies and personal protective equipment. In response to the global need for effective sterilization techniques, this study evaluated the virucidal efficacy of FATHHOME’s self-contained, ozone-based dry-sanitizing device, by dose and time response assessment. We tested inactivation of human coronavirus, HCoV-OC43, a close genetic model of SARS-CoV-2, on porous (N95 filtering facepiece respirator/FFR) and nonporous (glass) surfaces. We started our assays with 20 ppm-10 min ozone exposure, and effectively reduced 99.8% and 99.9% of virus from glass and N95 FFR surfaces, respectively. Importantly, the virus was completely inactivated, below the detection limit (over 6-log<sub>10</sub> reduction) with 25 ppm-15 min ozone exposure on both tested surfaces. As expected, a higher ozone exposure (50 ppm-10 min) resulted in faster inactivation of HCoV-OC43 with 100% inactivation from both the surfaces, with no residual ozone present after completion of the 5-min post exposure recapture cycle and no measurable increase in ambient ozone levels. These results confirmed that FATHHOME’s device is suitable for rapid decontamination of SARS-CoV-2- from worn items, frequently touched items, and PPE including N95 FFRs, face shields, and other personal items. |
| first_indexed | 2024-03-10T13:15:48Z |
| format | Article |
| id | doaj.art-bfd5f69ee324406c9f43e333f133ad81 |
| institution | Directory Open Access Journal |
| issn | 2076-0817 |
| language | English |
| last_indexed | 2024-03-10T13:15:48Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Pathogens |
| spelling | doaj.art-bfd5f69ee324406c9f43e333f133ad812023-11-21T10:25:55ZengMDPI AGPathogens2076-08172021-03-0110333910.3390/pathogens10030339Inactivation of Human Coronavirus by FATHHOME’s Dry Sanitizer Device: Rapid and Eco-Friendly Ozone-Based Disinfection of SARS-CoV-2Timsy Uppal0Amir Khazaieli1Antoine M. Snijders2Subhash C. Verma3Department of Microbiology and Immunology, Reno School of Medicine, University of Nevada, 1664 N Virginia Street, Reno, NV 89557, USAFATHHOME, INC., 8000 Edgewater Drive Suite #200, Oakland, CA 94621, USALawrence Berkeley National Laboratory, Biological Systems and Engineering Division, 1 Cyclotron Road, Berkeley, CA 94720, USADepartment of Microbiology and Immunology, Reno School of Medicine, University of Nevada, 1664 N Virginia Street, Reno, NV 89557, USAThe pandemic of SARS-CoV-2/COVID-19 was reported in December 2019 in Wuhan, China. Pertaining to its high transmissibility and wide host adaptability, this unique human coronavirus spread across the planet inflicting 115 million people and causing 2.5 million deaths (as of March 3rd, 2021). Limited or negligible pre-existing immunity to multiple SARS-CoV-2 variants has resulted in severe morbidity and mortality worldwide, as well as a record-breaking surge in the use of medical-surgical supplies and personal protective equipment. In response to the global need for effective sterilization techniques, this study evaluated the virucidal efficacy of FATHHOME’s self-contained, ozone-based dry-sanitizing device, by dose and time response assessment. We tested inactivation of human coronavirus, HCoV-OC43, a close genetic model of SARS-CoV-2, on porous (N95 filtering facepiece respirator/FFR) and nonporous (glass) surfaces. We started our assays with 20 ppm-10 min ozone exposure, and effectively reduced 99.8% and 99.9% of virus from glass and N95 FFR surfaces, respectively. Importantly, the virus was completely inactivated, below the detection limit (over 6-log<sub>10</sub> reduction) with 25 ppm-15 min ozone exposure on both tested surfaces. As expected, a higher ozone exposure (50 ppm-10 min) resulted in faster inactivation of HCoV-OC43 with 100% inactivation from both the surfaces, with no residual ozone present after completion of the 5-min post exposure recapture cycle and no measurable increase in ambient ozone levels. These results confirmed that FATHHOME’s device is suitable for rapid decontamination of SARS-CoV-2- from worn items, frequently touched items, and PPE including N95 FFRs, face shields, and other personal items.https://www.mdpi.com/2076-0817/10/3/339FATHHOMESARS-CoV-2COVID-19virus decontaminationPPE |
| spellingShingle | Timsy Uppal Amir Khazaieli Antoine M. Snijders Subhash C. Verma Inactivation of Human Coronavirus by FATHHOME’s Dry Sanitizer Device: Rapid and Eco-Friendly Ozone-Based Disinfection of SARS-CoV-2 Pathogens FATHHOME SARS-CoV-2 COVID-19 virus decontamination PPE |
| title | Inactivation of Human Coronavirus by FATHHOME’s Dry Sanitizer Device: Rapid and Eco-Friendly Ozone-Based Disinfection of SARS-CoV-2 |
| title_full | Inactivation of Human Coronavirus by FATHHOME’s Dry Sanitizer Device: Rapid and Eco-Friendly Ozone-Based Disinfection of SARS-CoV-2 |
| title_fullStr | Inactivation of Human Coronavirus by FATHHOME’s Dry Sanitizer Device: Rapid and Eco-Friendly Ozone-Based Disinfection of SARS-CoV-2 |
| title_full_unstemmed | Inactivation of Human Coronavirus by FATHHOME’s Dry Sanitizer Device: Rapid and Eco-Friendly Ozone-Based Disinfection of SARS-CoV-2 |
| title_short | Inactivation of Human Coronavirus by FATHHOME’s Dry Sanitizer Device: Rapid and Eco-Friendly Ozone-Based Disinfection of SARS-CoV-2 |
| title_sort | inactivation of human coronavirus by fathhome s dry sanitizer device rapid and eco friendly ozone based disinfection of sars cov 2 |
| topic | FATHHOME SARS-CoV-2 COVID-19 virus decontamination PPE |
| url | https://www.mdpi.com/2076-0817/10/3/339 |
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