Panasonic WhisperCeiling DC Fan w PickAFlow Speed Selector 110/130 150 CFM Flex-
When Panasonic FV-1115VQ1 WhisperCeiling DC fan senses static pressure, its speed is automatically increased to ensure optimal CFM output.The built-in Pick-A-Flow speed selector provides the unique ability to select your desired airflow (110-130-150 CFM) with the flip of a switch.