Panasonic is pleased to announce the launch of our WhisperValue DC family. Though small in size, Panasonic’s WhisperValue DC is big on performance. The Pick-A-Flow Speed Selector lets you choose desired airflow while a powerful, efficient ECM Motor with SmartFlow technology ensures optimum CFM output-ideal for long or difficult runs. Perfect for multi-family applications, it’s the lowest profile ENERGY STAR rated fan on the market and fits easily into a 2×4 stud bay. Plus, it’s UL listed for safe and simple wall or ceiling installation and can be used to comply with green building codes.