Heating, ventilation and air-conditioning systems in the context of COVID-19: first update

The scope of this document is to provide guidance on ventilation of indoor spaces in the context of COVID-19. https://www.ecdc.europa.eu/en/publications-data/heating-ventilation-air-conditioning-systems-covid-19https://www.ecdc.europa.eu/en/publications-data/heating-ventilation-air-conditioning-systems-covid-190001-01-01 00:00:00Z2020-11-11 12:00:00Z