From the WHO (World Health Organistation) - Roadmap to Improve and Ensure Good Indoor Ventilation
Context
The risk of getting COVID-19 is higher in crowded and inadequately ventilated spaces where infected people spend long periods of time together inclose proximity. These environments are where the virus appears to spread by respiratory droplets or aerosols more efficiently, so taking precautions is even more important.Understanding and controlling building ventilation can improve the quality of the air we breathe and reduce the risk of indoor health concerns including prevent the virus that causes COVID-19 from spreading indoors.
Methods
The roadmap was developed after conducting a scoping review of the available literature and an assessment of the available guidance documents from the major internationally recognized authorities on building ventilation. The available evidence and guidance were retrieved, collated and assessed for any discrepancies by international expert members of the WorldHealth Organization (WHO) Environment andEngineering Control Expert Advisory Panel(ECAP) for COVID-19. The roadmap development process included two expert consultation sessions via virtual meetings, and two rounds of written submissions, to gather technical contributions and to ensure consensus building for the adaptation of recommendations. This process considered infection prevention and control (IPC) objectives, resource implications, values and preferences, ethics, and research gaps within the roadmap development.
For more information click on this link:
https://iris.who.int/bitstream/handle/10665/339857/9789240021280-eng.pdf
