It is time to start talking about office tower blocks and COVID-19. Often regarded as the "cathedrals of the financial era," they are generally built as the least expensive way of housing that number of workers: open plan, shared offices, fixed windows and minimum ventilation. /2

All of these features contribute to COVID-19 transmission. Possibly the most challenging to remediate is ventilation, & building managers need to take steps to optimise ventilation and airflow and minimise turbulence in office buildings before they are recommissioned. /3

The linked article deals with many of these issues, and provides a range of options for managers to consider in order to help provide a COVID-safe environment for their staff.
https://www.mckinsey.com/industries/advanced-electronics/our-insights/can-hvac-systems-help-prevent-transmission-of-covid-19