A guideline to limit indoor airborne transmission of COVID-19

Airborne transmission arises through the inhalation of aerosol droplets exhaled by an infected person and is now thought to be the primary transmission route of COVID-19.

By assuming that the respiratory droplets are mixed uniformly through an indoor space, we derive a simple safety guideline for mitigating airborne transmission that would impose an upper bound on the product of the number of occupants and their time spent in a room.

Our theoretical model quantifies the extent to which transmission risk is reduced in large rooms with high air exchange rates, increased for more vigorous respiratory activities, and dramatically reduced by the use of face masks. Consideration of a number of outbreaks yields self-consistent estimates for the infectiousness of the new coronavirus.

Abstract from PNAS research article click here to read all

iDomus Pty LTD, Airtemp and other business sparse around the globe are working to add innovative countermeasures to reduce the risk of contagion and infection even more.

We can protect ourselves by implementing all these common sense actions like maintaining a safety distances, washing our hands, cough on our elbow and so on, but we can add well engineered, designed and installed countermeasures, which should be mandatory in public indoor environments, like introducing fresh air, monitoring the CO2 concentration and deep cleaning air and surfaces.

Our Air Steriliser and Anti-Virus Airtemp products are built do kill viruses among a myriad of pathogens directly in the air without need of filtration. We use an innovative technology harmless to human being which can be used 24/7, the Hydroxyl Radicals Technology. 

We also encourage to use UV Light and Ozone as back-up of our harmless Hydroxyl Radicals Compounds instead of a fallacy hand chemical of fumigation technology, which are releasing bad chemical in the indoor environment treated. 

Giuseppe Sergio