Placement of UV-C light sources at ventilation systems and rooms not in use, without direct optical paths to humans, help reduce virus propagation. Image credit: Nacho Gaubert.
This solution meets the requirements of fast, scalable, and affordable implementation to fulfill the needs of disinfecting working spaces, such as offices, schools, healthcare facilities, and public transportation, to name a few.
The SARS-CoV-2 outbreak is posing an extraordinary challenge that requires swift worldwide action for the massive deployment of affordable and ready-to-apply measures to drastically reduce its transmission probabilities in indoor spaces, and eventually return to conventional activities such as working at the office, going to school, or even attending entertainment events.
Studies show that the virus transmission follows two main paths. Firstly, the virus can transmit through air in droplets exhaled by infected individuals and inhaled by healthy individuals. Secondly, it can be deposited on surfaces from either exhalations or hand contact. Now, several measures are being adopted to help prevent the transmission of this disease. The common ones refer to facial masks and other physical barriers that if properly used have proven to be highly effective but that however depend on compliance of the population.
A long series of studies suggest that virus transmission in indoor spaces has a much higher transmission rate than outdoors. Filters and chemicals have been presented as possible solutions to minimize this problem, but even though these are efficient solutions to reduce the concentration of contaminated particles and droplets through ventilation systems, their installation may be costly and time-consuming. In addition, chemicals such as ozone are very effective for virus disinfection, but if misused they are harmful for humans.
In this context, in a study recently published in ACS Nano, ICREA Prof. at ICFO Javier García de Abajo, in collaboration with ICREA Profs. Andreas Meyerhans (Universitat Pompeu Fabra) and Joan Rosell-Llompart (University Rovira i Virgili), together with Profs. Rufino Javier Hernández (University of the Basque Country), Ido Kaminer (Technion), and Tilman Sanchez-Elsner (University of Southampton), experts in the fields of virology, immunology, aerosols, architecture, and physics, have surveyed the possible methods to prevent SARS-CoV-2 propagation in indoor spaces. Following this survey, they advocate for one measure that they believe to be particularly efficient, easily deployable, and economically affordable: virus inactivation by ultraviolet light.
The study gives information on the currently available UV-C sources, such as fluorescent lamps, microcavity plasmas, and LEDs, emphasizing that, by irradiating this type of light inside the ventilation systems of buildings and in shared indoor spaces while not in use, it is possible to quickly and efficiently deactivate airborne and surface-deposited SARS-CoV-2 viruses.
They also explore costs and investments in deploying such technology and argue that a global capital investment of a few billion dollars in UV-C sources could protect of the order of ~10^9 indoor workers worldwide.
The Latest Updates from Bing News & Google News
Go deeper with Bing News on:
- DM drugstores’ employees and customers can now feel safer thanks to Philips UV-C disinfection deviceson February 26, 2021 at 2:18 pm
Signify (Euronext: LIGHT), the world leader in lighting, has installed 280 Philips UV-C disinfection upper air luminaires at 40 branches of Slovakian drugstore chain DM, providing its customers and ...
- NM school district protects students, staff from COVID-19 with robotson February 25, 2021 at 7:45 pm
SNAP Solutions Inc. announces an agreement with Gallup-McKinley School District in New Mexico for the installation of thirty-seven UVD Robots® amongst the ...
- UV Light can Mitigate the Spread of Swine Viruson February 25, 2021 at 7:41 am
Let there be (ultraviolet) light. That is the indication provided by a study performed at Iowa State University (ISU) relating to the use of ultraviolet light(UV) to stop the spread of the virus that ...
- UV light shows promise in mitigation of costly swine viruson February 25, 2021 at 6:22 am
That's the indication given by research conducted at Iowa State University regarding the use of ultraviolet light as a means of stopping the transmission of the virus that causes porcine reproductive ...
- School District Takes Initiative to Protect Students and Staff From COVID-19 with Fleet of UV-C Light Disinfection Robots.on February 25, 2021 at 6:21 am
SNAP Solutions Inc. announces an agreement with Gallup-McKinley School District in New Mexico for the installation of thirty-seven UVD Robots® amongst the district's thirty-four schools and district ...
Go deeper with Google Headlines on:
Go deeper with Bing News on:
- Pfizer COVID-19 vaccine reduces transmission after one dose - UK studyon February 27, 2021 at 6:14 am
A single dose of Pfizer and BioNtech's COVID-19 vaccine cuts the number of asymptomatic infections and could significantly reduce the risk of transmission of the virus, results of a UK study found on ...
- Signs point to COVID-19 vaccines slowing viral transmission, not just diseaseon February 27, 2021 at 4:00 am
After countless hours spent searching for a COVID-19 vaccine appointment, Elizabeth Kostas is days away from getting her second and final shot. And like many San Diegans, she’s wondering what she’ll ...
- Could the Pfizer vaccine limit transmission? Texas experts are optimistic.on February 26, 2021 at 8:00 am
Texas epidemiologists are optimistic after two studies published this week indicate that COVID-19 vaccines both reduce the severity of one’s infection, and the likelihood that they can spread the ...
- One Dose of Pfizer Vaccine Reduces Transmission, Study Findson February 26, 2021 at 7:38 am
Three new British studies show the Pfzier-BioNTech COVID-19 vaccine, which is considered a two-dose vaccine, reduced transmission of the virus after one dose, particularly in people who had previously ...
- Middlebury College officials say virus transmission risk 'very low' as classes beginon February 24, 2021 at 3:09 pm
Officials with Middlebury College are touting the risk of COVID-19 transmission among students and coworkers as "very low" while the school enters its spring semester. Classes resumed Wednesday in a ...