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  • Kyle Durward

Ventilation tool to support COVID-19 controls

The British Occupational Hygiene Society (BOHS) has worked in collaboration with HSE Occupational Hygienists to develop a freely available tool for assessing general ventilation and COVID-19 transmission.


Good ventilation (providing fresh air) can help limit the risk of COVID-19 transmission, especially in enclosed spaces.


The ventilation tool supports employers, building users, and building owners by using a simple scoring system to indicate the effect their ventilation arrangements are likely to have on reducing COVID-19 transmission. It also provides recommendations for taking action, where appropriate.

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