SARS-CoV-2 COVID-19 Coronavirus Disinfection
To understand Wellisair's efficacy against the pandemic COVID-19 Coronavirus (initially 2019-nCoV) that emerged in 2019 in Wuhan, one must understand the morphological structure of this type of virus, as well as its classification:
Electron microscope photo of the Coronavirus COVID-19 (SARS-CoV-2) - SCRIPPS RESEARCH INSTITUTE
Coronaviruses are in the Coronavirinae subfamily in the Coronaviridae family, in the order Nidovirales. They are divided into 4 VOC subgenres: Alpha, Beta, Delta and Gamma. COVID-19 corresponds to the SARS family, classified as Betacoronavirus of lineage "B", originating in bats.
According to the genetic material, these viruses are included in group IV of the Baltimore classification, since the viral particle contains only one RNA chain of positive polarity linear single chain.
The diameter of the virus is around 60 to 200 nm, they have a nucleocapsid with helical symmetry and a lipid sheath that is derived from the membrane of the previously infected host cell. From these pods arise the characteristic projections in the form of a solar corona.
Due to the short time of the appearance of this strain, direct tests of the Wellisair technology against the virus have not been possible.
It has been possible to test a virus with a morphological structure similar to the coronavirus, such as the Respiratory Syncytial Virus (RSV). RSV is classified within Pneumoviruses, specifically in the Paramyxoviridae family, and even though it is not within the same family, this virus shares great similarities to COVID-19 as lipid membrane and glycoprotein projections.
The oxidation reactions (lipid oxidation and protein oxidation) that occur in the RSV are the same that they should have in COVID-19, so the elimination efficiency should be very similar.
Based on the results obtained with Wellisair in viruses with similar structures (RSV) to the COVID-19 Coronavirus, we can expect that the efficacy of our new technology will have an expected elimination result of an average of 92 to 99% depending on the relative humidity conditions.
|Pathogen||Test Result||Laboratory||Report Nº|
|Syncytial RSV||Mean||Exposure Time||% Effectivity|
|Wet||2 hours||99||Laboratory of viruses contaminating water and food University of Barcelona||20191212_3|
These conclusions are included in a study carried out by researchers from the Centro de Investigación en Seguridad y Control Alimentario (CRESCA) of the Universitat Politècnica de Catalunya (UPC) and the e-SHealth published in the IJOER magazine "International Journal of Engineering Research & Science".
Bibliographic Report University of Barcelona
The microbiology, virology and biotechnology section of the laboratory for contaminating viruses in water and food at the University of Barcelona has produced a bibliographic report on disinfection and the COVID-19 Coronavirus.
Coronaviruses more like SARS-CoV are easily inactivated with commonly used disinfectants, and are especially more susceptible to alcohol-based ones (such as OH hydroxyl radical technology).
Coronavirus has a morphology very similar to RSV respiratory syncytial virus tested by the University of Barcelona with a reduction power of 92 to 99% (dry/wet) in 2 hours.
Although ozone is an especially efficient disinfectant for RNA viruses, high concentrations are harmful to living beings and therefore not suitable for environments inhabited by humans.
In contrast, with the hydroxyl radicals OH generated by Wellisair, according to the results obtained in our laboratory, it is expected a similar inactivation of Coronavirus without the drawbacks of ozone toxicity.
Airtècnics release in reference to the bibliographic report of the UB
Airtècnics states that the document "Report on the stability and disinfection of the new coronavirus 2019-nCoV" from the University of Barcelona is authentic and its content is true.
Faced with the current situation of the Covid-19 pandemic, different distributors, resellers and the media have published erroneous interpretations of this document, even going so far as to say that Wellisair had been validated by the “University of Barcelona” with efficiency against the Coronavirus Covid-19.
Faced with the barrage of inquiries received from the UB to confirm that they had certified Wellisair against the Covid-19 Coronavirus, the University of Barcelona has issued a public statement denying these erroneous claims.
Airtècnics has not modified or falsified any document or test of any test carried out with our Wellisair team in the Laboratory of Water and Food Contaminant Viruses at the University of Barcelona.
We have the original of all the documents of the tests carried out. We attach the “Report on stability and disinfection of the new 2019 coronavirus-nCoV” of the UB, notarized in case there was any type of doubt.
Apart from this bibliographic report, the Laboratory of Contaminating Viruses of Water and Food of the University of Barcelona has carried out tests on the efficacy of the Wellisair unit (WADU-02 Wellis) for disinfecting various viruses on surfaces such as Rotavirus, Respiratory Syncytial RSV and Coxsackievirus.
We take the opportunity to attach the summary tables with the results of the tests carried out by international laboratories and prestigious universities (including the UB) of the main applications of Wellisair: