BROAN ZB110M 110 CFM, <0.3 Sones, M

Broan ULTRA™ Motion Sensing Fans deliver everything you wished for in a bath fan – premium ventilation to help reduce airborne pollutants, ease of installation, energy efficiency, consistent power, extremely quiet operation and multi-speed capability. Best of all, they have the ability to know when they should be in the “normal” continuous ventilation mode and when they should kick up to the high speed mode to evacuate shower humidity or odors.