{"id":3348,"date":"2022-10-05T12:36:47","date_gmt":"2022-10-05T11:36:47","guid":{"rendered":"https:\/\/sites.manchester.ac.uk\/covid19-national-project\/?p=3348"},"modified":"2022-10-05T12:39:47","modified_gmt":"2022-10-05T11:39:47","slug":"how-much-ventilation-is-required-to-reduce-transmission","status":"publish","type":"post","link":"https:\/\/sites.manchester.ac.uk\/covid19-national-project\/2022\/10\/05\/how-much-ventilation-is-required-to-reduce-transmission\/","title":{"rendered":"How much ventilation is required to reduce transmission?"},"content":{"rendered":"

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Although there is no \u201csafe\u201d ventilation rate to prevent the spread of pathogens altogether, ventilation that maintains lower CO2 levels (under 800ppm) is considered a lower risk environment. High CO2 levels (routinely above 1500ppm) are often a sign of poor ventilation and may create a higher risk environment.<\/p>\n

Transmission models suggest that better ventilation can lower risks and reduce the probability of outbreaks Predictive and retrospective modelling of airborne infection risk using monitored carbon dioxide – Henry C. Burridge, Shiwei Fan, Roderic L. Jones, Catherine J. Noakes, P. F. Linden, 2022 (sagepub.com)<\/span><\/a>. However, ventilation is much more effective when it is used together with social distancing than when people are less than 1m apart.<\/p>\n

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Related<\/h1>\n

Related posts:<\/h3>
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What are the minimum specifications required?<\/h2><\/div><\/div><\/a>
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What messages and communication strategies are effective at increasing and maintaining support of me...<\/h2><\/div><\/div><\/a>
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How does this the amount of ventilation required vary depending on the type of room and its usage?<\/h2><\/div><\/div><\/a><\/div>
<\/div><\/div><\/div>\n

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Email:\u00a0PROTECT@hse.gov.uk<\/a><\/span><\/p>\n

Health & Safety Executive \u2013 Science Division
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Buxton
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