Broan-NuTone 80NT Ventilation Fan is manufactured by NuTone and is Energy Star rated. The fan has a flow rating of 80 CFM (cubic feet per minute) along with a Sones (sound) rating of 1.5. This is a great ventilation fan for any bathroom and with it's sleek design gives it a more modern look. This fan is great for small bathroom applications up to 45 square feet. The Ventilation fan offers an easy installation and fits great in a 2" x 6" ceiling construction.