Powerful Ventilation: Equipped with a premium AC motor, this bathroom exhaust fan delivers a steady airflow of 80 / 110 / 130CFM, ideal for covering 129-161 ft² (12-15 m²) spaces. It efficiently clean off damp and unpleasant smell, keeping bathroom fresh Quiet Operation: Operating at only 1.5 sones (60dB), this bathroom fan runs as quietly as a soft conversation, ideal for bathrooms near bedrooms to ensure peaceful rest User-friendly Installation: Sized 11.81 x 10.24 x 6.69 in / 300 x 260 x 170 mm, fits ceilings sized 7.68 x 7.60 in / 195.1 x 193.0 mm, with a standard 4-inch duct connection, this bathroom ceiling fan includes quick connectors and screw for easy DIY setup 3 Color Adjustable Lighting: Built-in LED offers 3000K warm, 4000K neutral, and 5000K cool light options