Question to the Department of Health and Social Care:

To ask the Secretary of State for Health and Social Care, if he will publish a list of currently applicable regulations and guidance used by his Department on ventilation and indoor air quality that still refers to withdrawn technical standards such as EN 13779:2007.

The UK Health Security Agency (UKHSA) is not able to comment on technical standards, such as EN13779:2007. We note that EN13779:2007 has been replaced by BS EN16798-1:2019. BS EN 16798-1:2019 provides a method for designing ventilation rates to dilute individual substances. It provides default design carbon dioxide concentrations above outdoor concentrations which are consistent with international regulations on ventilation, as identified by UKHSA work.