Building Ventilation and Filtration
UC Berkeley is working to make sure that campus ventilation and filtration systems provide appropriate COVID-19 risk mitigation.
HVAC systems cannot prevent the spread of the coronavirus, but they can mitigate risk of infection by providing filtration and air exchanges. Being vaccinated is the most effective method of increasing your personal safety.
Although fans can increase ventilation if installed where they bring in outside air, fan use is not recommended anywhere multiple people may be present in an indoor environment. A fan blowing across a sick person can increase risk of infection for others in a room.