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Does airborne SARS-CoV-2 stay infectious longer in unventilated spaces?

According to research from Allen Haddrell et al., yes. “A significant increase in SARS-CoV-2 aerostability results from a moderate increase in the atmospheric carbon dioxide concentration (e.g. 800 ppm).” The aerosolized virus remains infectious for a longer period of time in a space with higher CO2 concentrations. This again underscores the importance of CO2 monitoring and optimized ventilation in indoor spaces.


Study: Ambient carbon dioxide concentration correlates with SARS-CoV-2 aerostability and infection risk

More from Allen Haddrell on his group’s research here: