COVID-19 Transmission and ILIMEX
The World Health Organisation has stated that there is a knowledge gap in the area of airborne transmission of SARS-CoV-2 and they are currently working with the scientific community to evaluate the risk associated with spread through aerosols (in the absence of aerosol generating procedures, such as dentist and medical procedures) particularly in indoor settings with poor ventilation.
Studies looking at closing the knowledge gap in relation to spread through aerosols are finding that aerosol transmission might in fact be the dominant transmission method. This is being proven by the fact that the countries which have a history of face mask usage (due to pollution and previous coronavirus outbreaks) have been better able to control their outbreaks.
Lab studies, in idealized conditions, also show that the virus can live in an aerosolized form for up to 16 hours (the scientists in this case intentionally created aerosolized droplets with a machine). Another study tracked with lasers the various droplets expelled from a human mouth during speech.
It found “normal speech generates airborne droplets that can remain suspended for tens of minutes or longer and are eminently capable of transmitting disease in confined spaces.” Initially it was believed that the big drops fall on surfaces, and those surfaces can become contaminated too. However, in the case of Covid-19, there is a growing consensus that getting sick from touching contaminated surfaces is quite rare. What has been shown in studies is that 80% of infection has been transmitted through the air.
Efficiency and University Results
The air sterilising unit was submitted for testing to Ulster University earlier this year. Bacteriophage MS2 was used as a viral surrogate to assess the efficacy of the air sterilising unit, the results of the testing were then used to extrapolate a kill rate for the Covid-19 Coronavirus. MS2 is considered a very robust challenge organism requiring a high UVC dose to cause inactivation as it is commonly held to require 7-10 times greater UVC dose than Coronavirus. The results of the testing provide confidence that a >6log (>99.9999%) reduction of coronavirus is attainable with the underpinning Ilimex technology.
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