By TEL-AVIV UNIVERSITY FEBRUARY 28, 2021
Studies have shown that SARS-CoV-2 remains active on aerosols and surfaces for between several hours and several days, depending on the nature of the surface and environmental conditions. Presently, researchers from Tel Aviv University have demonstrated that ozone, which has already long been used as an antibacterial and antiviral agent in water treatment, effectively sanitizes surfaces against Coronavirus after short exposure to low concentrations of ozone.
The research team was led by Dr. Ines Zucker from the School of Mechanical Engineering at the Ivy and Eldar Fleischman Faculty of Engineering and the Porter School of the Environment and Earth Sciences at the Tel Aviv University. Dr. Zucker collaborated with Dr. Moshe Dessau from the Azrieli Faculty of Medicine at Bar Ilan University in the Galilee and Dr. Yaal Lester from the Azrieli College in Jerusalem in order to investigate the feasibility of ozone for indoor inactivation of SARSCoV-2.
Most people recognize ozone as a thin layer of the Earth’s atmosphere that guards us against the harmful effects of UV radiation. However, ozone is also known as a strong oxidant and disinfectant employed in water and wastewater treatment schemes. Within the study framework, the research team decided to adapt the mechanisms whereby they use ozone to break down organic pollutants from contaminated waters and demonstrate the expected efficacy of the ozone in neutralizing Coronavirus.
Ozone gas is generated by electrical discharge (the breakdown of chemical compounds into their elements using electric current), in the course of which oxygen molecules are reconstructed in the form of ozone molecules. In the course of their study, the researchers demonstrated the inactivation from various infected surfaces, even in hard-to-reach locations. They demonstrated a high level of disinfection within minutes, even on surfaces not typically disinfected with manually-applied liquid disinfectants with a statistical success rate of above 90%. According to Dr. Ines Zucker, the method involves inexpensive and readily available technology, which can be utilized to disinfect hospitals, schools, hotels, and even aircraft and entertainment halls.
“Gaseous ozone is generated from oxygen gas by electrical discharge. Now, for the first time, we have managed to prove that it is highly efficient in combating Coronavirus as well,” stresses Dr. Zucker. “Its advantage over common disinfectants (such as alcohol and bleach) is its ability to disinfect objects and aerosols within a room, and not just exposed surfaces, rapidly and with no danger to public health.” Dr. Zucker estimates that, since the gas can be produced relatively cheaply and easily, it should be possible to introduce ozone disinfecting systems on an industrial scale to combat the COVID-19 outbreak.
Reference: “Pseudoviruses for the assessment of coronavirus disinfection by ozone” by Ines Zucker, Yaal Lester, Joel Alter, Michal Werbner, Yinon Yecheskel, Meital Gal-Tanamy and Moshe Dessau, 13 January 2021, Environmental Chemistry Letters.
The preliminary findings of the study were published in the Journal: Environmental Chemistry Letters.
WHO .Inactivation (disinfection) processes
NARA MEDICAL UNIVERSITY STUDY CONFIRMS THAT OZONE INACTIVATES SARS-COV-2
Nara Medical University in Japan Announces World’s First Result of Research on SARS-CoV-2 and Ozone with MBT Consortium Association
The research group consisted of;
Professor Hisakazu YANO, Department of Microbiology and Infectious Diseases, Nara Medical University
Director Kei KASAHARA, Center for Infectious Disease), Nara Medical University
MBT Consortium Association (Infectious Diseases subcommittee member: Qol Holdings Co.,Ltd., Sanyu Syoji Co.,Ltd., Tamura TECO Co.,Ltd., Marusan Pharma Biotech Co.,Ltd.)
Background of the research project: There had been little or no information to prove if ozone gas could indeed defeat SARS-CoV-2.
Experiment: The SARS-CoV-2 was cultivated and applied on a stainless steel plate in an ozone-proof airtight box installed in the safety cabinet. By operating Ozonizer, the ozone concentration in the ozone-proof airtight box was controlled and maintained from 1.0 to 6.0ppm.
Result of this study: 55-60 minutes exposure the SARS-CoV-2 was inactivated. There were variable results in reference to the PPM level achieved (i.e. 1/10 -1/100 @ 1PPM and 1/10,000 @ 6PPM).
Conclusion: It was confirmed the inactivation of SARS-CoV-2 (Novel coronavirus) was achievable by exposure to ozone gas
If you are interested in finding out more about our Ozone Generators and how we can help your business, please contact us by calling 08443 031 525 or by email firstname.lastname@example.org.
Mobile Ozone Sanitiser is approved for the rapid sanitising of Welsh Emergency Ambulances against COVID-19
Our mobile ozone sanitiser, Pure Air 20, has been tested by DARSA and the DTSL as part of a winning solution run by the SBRI, the Welsh Government and the Welsh Ambulance Services NHS Trust.
The tests were conducted at Porton Down under the Rapid Sanitising Technology for Ambulances initiative aimed at reducing the time taken to clean ambulances used to transport patients suspected of having COVID-19.
Position Statement: Rapid Sanitising Technology for Ambulances:
The Rapid Sanitising Technology for Ambulances was aimed at reducing the time taken to clean ambulances which have transported patients suspected of having COVID-19, in order to reduce strain and delay on a high-pressured and busy service. The project was a collaboration between the Small Business Research Initiative (SBRI) Centre of Excellence, the Welsh Government, the Welsh Ambulance Services NHS Trust (WAST), the Defence and Security Accelerator (DASA) and the Defence, Science and Technology Laboratory (DSTL).
We reviewed over 200 applications and shortlisted twelve industry partners. The industry partners tested their solutions to see if they were effective for use against the spread of COVID-19 in an ambulance setting. The tests have only been conducted for the purposes of application in Welsh Emergency Ambulances (specific vehicle) and solutions may not be suitable for use in other ambulances or alternative environments.
Betsi Cadwaladr University Health Board, SBRI Centre of Excellence, Welsh Government, Welsh Ambulance Services NHS Trust, Defence and Security Accelerator and the Defence and Security Technology Laboratory do not endorse any specific contractor. Any business/organisation that is interested in using rapid-sanitising technology will need to undertake its own testing, both ethical and quality assurance.
For further information about the use of rapid-sanitising technology in other settings please contact Ian Craig directly - or call 08443 031 525