Long before coronavirus vaccines started being widely administered in the country, public health agencies made recommendations on improving building ventilation, as the virus is thought to primarily spread through airborne respiratory droplets.

The memo Friday draws attention to recommendations for schools from the Centers for Disease Control and Prevention and Environmental Protection Agency. They include bringing in as much outdoor air as possible and using heating, ventilating, and air conditioning systems to maximize ventilation.

Colleges should open windows whenever it is safe to do so, service or upgrade HVAC systems to industry standards, and set them to bring in as much outdoor air as possible, the memo states.

Read the full article about improving ventilation by Jeremy Bauer-Wolf at Higher Ed Dive.