A ventilation blower should operate how long?

A ventilation blower should operate long enough to effectively exchange indoor air with outdoor air, typically around 15 to 30 minutes per hour, depending on the specific ventilation needs of the space. Factors such as the size of the area, the number of occupants, and the presence of pollutants or humidity levels can influence this duration. Regular operation is crucial for maintaining indoor air quality and ensuring proper ventilation. It's essential to monitor conditions and adjust the blower's runtime as needed.