The improvement of schools' ventilation systems being so time-consuming and costly have forced local governments to buy air purifiers instead. It will be years before schools see updated ventilation systems installed.
Due to increased construction costs, several of Tartu's educational facilities won't be renovated until much later than expected. It will be another five years before some older buildings in critical state undergo renovations; some new buildings, meanwhile, may have to wait until at least 2040.
Half of Tartu's schools and nurseries have natural ventilation, which makes it difficult to clean the air from the coronavirus. The city government is now testing air purifiers as a solution.