Recommendations for Ventilation in Nonmedical Facilities

SARS-CoV-2 transmission is particularly effective in crowded, confined indoor spaces where there is poor or no ventilation. Hence, to reduce the risk of COVID-19 infection, it is key to ensure adequate ventilation and to include enhanced ventilation and filtration as components of a comprehensive plan for reopening buildings and their operations. Such plans should also consider the use of facemasks, hand hygiene, physical distancing, and communication strategies.