The Broan NuTone Flex Series Bathroom Exhaust Fan (Model # PEN811) offers selectable 80 or 110 CFM airflow settings to accommodate a range of bathroom sizes. The unit measures 9.25" W x 10" L x 5.75" H for a standard ceiling installation. Designed for quiet, efficient operation to reduce moisture and odors. Arrives in original packaging in like-new condition with no damage noted. Ideal for bathrooms up to approximately 105 square feet.