How Rensair Air Purifiers Help Remove SARS-CoV-2 Particles (COVID-19)

Rensair’s patented technology uses advanced purification technology, including UVC light and HEPA 13 filters. To better understand how Rensair is effective against COVID-19, we must understand the virus and the scientific reports on the technologies that have proven to mitigate its spread.

Definition and Severity 

Coronavirus is a general term for a family of virus strains that cause diseases such as MERS and SARS and the “new” SARS-CoV-2 strain, which causes the disease COVID-19. 

Although coronavirus strains infected humans since the 1960s, Thomas J. Walsh, M.D., Ph.D. and Vidmantas Petraitis, M.D., infectious disease experts at the Infectious Diseases Translational Research Laboratory, Weill Cornell Medicine, Cornell University, contend that COVID-19 is especially troubling because of its “high secondary infection rate, rapid spread (more rapid than MERS or SARS), and fatality rate (2-3%).”

UVC Light

Walsh and Petraitis in their report from March 2020, 2020 COVID-19 Coronavirus Susceptibility, explain that viruses are DNA molecules incapable of being treated with antibiotics and require a vaccine. However, they clarify that ultraviolet light can destroy the DNA of viruses, “The SARS-CoV-2 virus has not yet been specifically tested for its ultraviolet susceptibility but many other tests on related coronaviruses, including the SARS coronavirus, have concluded that they are highly susceptible to ultraviolet inactivation.” 

The September 2020 study by the Henry Ford Health System, UV-C light is effective for killing COVID-19 on N95s, has since confirmed the effectiveness of UVC light in killing the coronavirus. Researchers here showed that N95 respirators tainted with COVID-19 can be effectively and safely decontaminated using UVC light. 

Based on the findings of Walsh and Petraitis, we can estimate that SARS-CoV-2 particles captured inside Rensair are killed in 4-6 seconds based on the strength of the Rensair UVC lamp.

We can conclude that the Rensair UVC light helps to destroy airborne SARS-CoV-2 particles captured by Rensair. Find out more about Rensair’s unique technology. 

HEPA Filters 

Next, let’s explore how HEPA filters are effective at removing coronavirus from the air. Tim Heffernan addressed this issue in his July 2020 article for The New York Times, Can HEPA Air Purifiers Capture the Coronavirus?  Heffernan explains that the virus that causes COVID-19 is approximately 0.125 micron in diameter, which falls squarely within the particle size range that HEPA filters capture with extraordinary efficiency. “Many media outlets have incorrectly stated that HEPA filters don’t filter below 0.3 micron and therefore could not capture airborne coronaviruses. That’s wrong,” he says. 


He also sites this NASA study of HEPA filtration and the graph they include (see below), which he says, “does a good job of explaining why HEPA filters are actually most efficient—almost 100% at 0.01 micron—at capturing ultrafine particles below the 0.3-micron HEPA test standard.”

HEPA Filters from Engineering360 supports this by confirming that HEPA filters are specifically “designed to trap a vast majority of very small particulate contaminants from an air stream.”

Additionally, a recent research paper by the Scientific Advisory Group for Emergencies (SAGE) stated that devices incorporating HEPA filters or other high grades of filter (e.g. MERV 13 or higher) are likely to be effective at removing a substantial proportion of airborne virus. 

We can conclude that Rensair’s HEPA 13 filter helps to destroy airborne SARS-CoV-2 particles.  Find out more here.

In addition, Rensair was tested by the Oslo University Hospital. A statement letter written by Oslo University Hospital researcher Dr. Hilde Bånrud concludes, “Based on the tests performed by accredited laboratories and scientifically published literature, one can conclude that the Rensair air cleaner effectively reduces the level of microorganisms, such as bacteria, viruses, moulds and yeasts in the air.” 

Since their tests confirm that Rensair removes 99.98% of airborne coronavirus, we can conclude that Rensair helps to remove airborne SARS-CoV-2 particles.

Contact us to find out how Rensair can help your business.