The COVID-19 Avoidance Motto Remains: Ventilation, Ventilation, Ventilation

Researchers from the Cardiology Centers of the Netherlands and the University of Amsterdam published a study on December 22, 2020 that indicates a commercial hand-held particle counter can be used for this purpose and help determine the impacts of risk-reducing measures, like ventilation improvements.

When translating the findings to practical risk assessments in the context of SARS-CoV-2 transmission by aerosols, the researchers concluded that 'the risk of transmission via airborne aerosols is low in all but the restroom, elevator, and unventilated living room scenarios.' The study's findings suggest well-ventilated areas can have aerosol concentrations more than 100 times lower than poorly ventilated areas.

The researchers commented: 'The motto remains ventilation, ventilation, ventilation.'