“We ignore COVID-19 airborne spread indoors at our peril” – After an urgent plea from hundreds of scientists, the World Health Organisation says it “cannot rule out” the risk of COVID-19 spreading via aerosols, which can survive in the air for hours, and has issued new advice.

In its most definitive statement on COVID-19 spread to date, the WHO has acknowledged the possibility that outbreaks in choirs, restaurants and fitness classes around the world were the result of some aerosol transmission. “In these events, short-range aerosol transmission, particularly in specific indoor locations, such as crowded and inadequately ventilated spaces over a prolonged period of time with infected persons cannot be ruled out,” the statement said.

These much smaller aerosol particles we produce during exhalatory activities, such as when we cough or sing, and these can remain suspended in the air for hours and travel up to four metres. With the average person taking between 12 to 20 breaths per minute, it doesn’t take long for an “aerosol cloud” to form. In poorly ventilated areas, the risk of aerosols is even greater.

How OHAir can reduce the risk of aerosol transmission

With hydroxyls able to quickly intercept viral aerosol clouds and eliminate pathogens – without the use of chemicals and being completely-human safe – OHAir is the only solution that fits this airborne treatment role in an operational environment. Using FDA approved technology, the system can operate 24 hours a day, providing continuous treatment in any occupied indoor space, both in the air and on surfaces.

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