Ventilation must be improved in buildings and aeroplanes to reduce the risk of covid-19 spreading via the air, according to recommendations from several organisations. We know the coronavirus can spread via air but there is still debate about how it does this and how much this form of transmission contributes to the spread of the disease. What is clear is that the risk is greatest if you spend a long time in a confined, poorly ventilated space with others who might be infected – something that many workers cannot avoid. For this reason, several industry and safety organisations have recommended improvements to ventilation to help limit the spread of disease, including the European Union Aviation Safety Agency, but it is unclear if this advice is being followed.
