…There are generally three means to reduce exposure to airborne indoor contaminants. You could remove or reduce the source, dilute the room air with clean ventilation or outdoor air, or remove the contaminants using a room air cleaner or local exhaust fan.
…When people breathe, cough and sneeze, they release respiratory droplets and smaller aerosols less than five millionths of a meter in size. Compared with respiratory droplets, the smaller aerosols can remain in the air for longer periods of time. The current data suggest the novel coronavirus is primarily transmitted through contact with larger droplets, but tiny aerosols can also harbor the virus and may pose a threat to people, especially indoors. To establish a sound defense against these aerosols, informed management of airflow and airborne contaminants could be critical.
