At the request of Sir Patrick Vallance, the Government’s Chief Scientific Adviser, the Royal Academy of Engineering and the National Engineering Policy Centre set up a Commission to review the actions needed to make infrastructure more resilient to infection. This identified the most critical issues as: (1) working to establish what good and bad ventilation in buildings look like, with clear guidance on the amount of fresh air required; (2) Highlighting the vital role ventilation plays in controlling infection spread and how can we raise the knowledge and skills levels for those managing non-domestic buildings and (3) for most buildings, domestic and non-domestic, the skill level of the people responsible for managing ventilation doesn’t lead to good decision-making and effective control. Who will promote the policies required to ensure that both existing and new buildings are infection resilient environments?