How can I determine the appropriate replacement for an older fan?
The model number, brand named, or manufacturer name coupled with the information on the HVI Tested/Certified sticker can be matched to current HVI-Certified products. Sometimes this information has worn off or was not on the fan in the first place, especially if the fan is more than 10 years old; if so, the fan will then need to be replaced with a new model that is suitable. Consult the How Much Ventilation Do I Need? article from the 2006 HVI Fresh Ideas – The Guide to Home Ventilation & Indoor Air Quality for assistance in determining how much airflow (cfm) is appropriate for the room you wish to ventilate. There is also an HVI-Certified Products Directory that lists manufacturers of HVI-Certified products with their specifications.
