Monitoring CO2 indoors for improving ventilation as a Covid-19 control tool
27 October 2021
Dr Ian Longley and Dr Julie Bennett
Poor ventilation in indoor settings is widely recognised as a risk factor for the airborne transmission of the virus (SARS-CoV-2) that causes Covid-19. Virus-laden aerosols can remain airborne for hours in indoor spaces with low levels of ventilation. In this blog, we discuss how to use carbon dioxide (CO2) measures as a proxy for estimating the level of ventilation in a building and to guide ventilation improvements in schools and workplaces.