According to guidance provided by the Centers for Disease Control and Prevention (CDC), it is important to make multiple improvements to building ventilation to reduce the spread of disease and lower the risk of exposure. In addition to these improvements, physical distancing, wearing face masks, hand hygiene and vaccination should be considered contributing factors in stopping the spread. It is important we separate fact from fiction when understanding how the virus spreads related to HVAC systems and the measures we can take to avoid infection.