50-80-110 CFM Ceiling Mount Ventilation Fan with Smartflow ECM Motor & Condensation Sensor in White - Fan Only - 0.3-2 Sones - Energy Star Rated FV-0511VFC1

The Panasonic WhisperFit DC FV-0511VFC1 takes the guesswork out of moisture control with a built-in condensation sensor that reads humidity and temperature to anticipate dew point and turns the fan on automatically. The Pick-A-Flow selector lets you choose 50, 80, or 110 CFM, and the ENERGY STAR certified DC motor runs quietly and efficiently to help prevent mold and mildew. Designed for retrofits, its low-profile 5-5/8-in. housing fits 2 x 6 joists or larger, and the Flex-Z Fast bracket installs from below the ceiling using existing ductwork.