Home Analysis Can Blue Star’s air conditioners really tackle COVID-19?

Can Blue Star’s air conditioners really tackle COVID-19?

After Blue Star launched products claiming their technology can eliminate viruses, including SARS-CoV-2, The Electronics spoke to experts to see if it’s as good as they claim.

Blue Star Ltd, the air conditioning manufacturer, recently launched a new line of products with Virus Deactivation Technology (VDT). The firm claims that VDT has the capability of deactivating viruses including COVID-19 (SARS-CoV-2) with up to 99.9% efficacy.

The Electronics referred to scientific reports and spoke to experts to see if the technology actually is as helpful as Blue Star claims it is. Before delving in to that, let’s understand how the technology works.

According to Blue Star, the VDT technology consists of Livinguard filter and UVC emitters. The filter’s positive charge attracts negatively charged virus particles and completely deactivates them as they pass through the filter. The Ultraviolet Germicidal Irradiation or UVGI technology, uses UVC (ultraviolet C) emitters in the air conditioning system to irradiate the viruses by altering its DNA/RNA, claimed Blue Star.

Blue Star has although not revealed the scientific details of how VDT works yet.

A study by researchers from Bethesda, USA, who didn’t check UVC light against Covid-19 specifically, supported that exposure to UVC light can be effective in inactivating multiple strains of viruses. “UVC light inactivated the SARS-CoV virus at a distance of 3 cm for 15 min,” read the research.

The Electronics spoke to Dr Sagarika Pradhan, associate professor at Chhattisgarh Institute of Medical Science for microbiology, about the technology. While she said it was true that UV light kills viruses, she was unsure how effective it was in killing Covid-19 particularly.

“It is scientifically proven that UV lights can kill viruses with the appropriate amount of exposure and wavelength. The UVC light requires a particular time, about 15 minutes, to kill viruses in a large surface area,” said Pradhan.

“The technology would only work if the system can kill the virus in half a second when the air passes through the system. It is also necessary that humans are not exposed to the ultraviolet rays,” she added.

But, a recent research by Hiroshima University suggested that 222 nm wavelength of UVC can be safely used on human beings to kill SARS-CoV-2 effectively. However, there has been limited information on the use of the same in public spaces. The research read, “222 nm UVC can be a promising disinfection system for occupied public spaces including hospitals where nosocomial infections are a possibility.”

The technology is proven to be non-hazardous to people and the products will be adhering to the safety protocols mandated by the government, said B Thiagarajan, managing director of Blue Star Ltd, in the press release.

The company has, however, provided a disclaimer that the products are not a substitute to the government-advised mandatory precautions like wearing face masks and practicing social distancing.

Anushka Shrivastava
Media student | Writer | Avid Reader


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