Researchers have proven that a small dose of UV-C light completely inactivates Sars-CoV-2 (coronavirus)

Great news appear in the Covid-19 prevention research landscape! Recent studies from Boston University have concluded 22 mJ/cm2 of UVC light should be enough dose to approach 6 log reduction of the Sars-CoV-2 virus (also known as corona-virus) that causes Covid-19. This level of disinfection compares to undetectable standards and is therefore understood as “virus-free”.

With over 435K deaths worldwide and 119K in the United States, it is imperative to take action and improve current preventative measures. One of the top spreading vehicles for Sars-Cov-2 is through surfaces and instrumentation. While the use of UV radiation is discouraged against disinfecting the body from this virus (or any other), this study shows its effectiveness providing virus-free objects and spaces.


Phoseon is here to help and our lamps can supply substantially more dosage than the one studied. Scientists speculate that the greater the UV-C dosage, the more effective disinfection of Cov-Sars-2 will be. According to the Boston University’s study, complete disinfection is achieved between 6-25 seconds. The use of UV radiation is proven to be faster and less error prone than chemical disinfectants, which usually need from 30s to minutes and are always subject to human error in whipping technique. Further research is necessary to uncover exact dosage to reach 6 log reduction with UVC and establish preventative methodology in the scientific community. In the meantime, this is promising news.


Phoseon lamps (in KeyPro products) have proven to be very effective for rapid inactivation and disinfection of microorganisms. Contact us now for more information!


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Categories: Bio-inactivation applications, UV LED disinfection system, Virus Inactivation, KeyPro Instrument