Bybiment Quiet Bathroom Ceiling Fan, UL Certified, 50 CFM, 1.0 Sones, 4-inch & 3-inch Duct, White, 115V Vent Fan for Bathroom/Shower/Office/

[Efficient & Silent Operation]: 50 CFM, 1.0 Sones, this fan effectively clears moisture and odors while lowering humidity. It cuts down on noise and power use, offering a quiet, energy-saving option. [ Build]: Features an ABS panel and metal back, with quick-connect fittings for 3-inch and 4-inch pipes. The detachable wiring cover simplifies connections in confined areas. [Hassle-Free Setup]: The fan measures 7.5" x 7.3". Adjust the ceiling opening if replacing a fan of different sizes. The plastic panel and metal rear durability, with a 50CFM airflow. [Overheat Safety]: Includes thermal protection that turns off the fan at high temperatures, damage and fire risks from overheating. [ & Warranty]: Backed by a 2-year warranty and certified by Energy STAR, UL, and HVI. us anytime for assistance, with responses within 24 hours.