University of Minnesota researchers confirmed NoviSphere’s 99.99% efficacy against live coronavirus, publishing their results in the Journal of the American Chemical Society’s Environmental Science & Technology branch. These results were achieved using germicidal 254 nm UV-C light, paired with a proprietary entrapment chamber and sealed UV-C lamps, ensuring optimal pathogen elimination and continuous air purification.
The study titled "Greater than 3-Log Reduction in Viable Coronavirus Aerosol Using UV-C in a Flowing Air Model" investigates the efficacy of UV-C light in inactivating airborne coronaviruses within a controlled airflow environment.
Key Findings:
UV-C Efficacy
Sealed UV-C flow reactors, operating at a wavelength of 253 ± 1 nm with fluences between 13.9 and 49.6 mJ/cm², effectively inactivated coronaviruses present in aerosols.
Log Reduction
A significant reduction in viable virus was observed, achieving over a 3-log decrease, which corresponds to a 99.99% reduction in viral load.
Inactivation
The inactivation was attributed to the germicidal properties of UV-C light, which damages the viral RNA, rendering the virus non-infectious.
​Implications for Air Purification:
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The findings suggest that integrating UV-C light into air purification systems can be an effective strategy for reducing airborne viral transmission.
By incorporating UV-C flow reactors, such as those utilized in NoviSphere's air purification products, it's possible to achieve high levels of pathogen elimination, enhancing indoor air quality and safety.
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This study underscores the potential of UV-C technology as a reliable method for continuous air disinfection, particularly in settings where controlling airborne pathogens is critical.