Exhaust Fans

The test used to measure airflow going out of an exhaust fan is called the "Garbage Bag Airflow Test". This requires taping the opening of a garbage bag to a sturdy item such as a bent coat hanger or pieces of cardboard made into a ring to keep the bag open, placing the bag over the fan, and counting how many seconds it takes for the bag to expand fully.


Tour More Rooms

AddThis Social Sharing Icon

Page Last Updated: 18/06/2018