Efficient & Durable for Humid Environments: This bathroom exhaust fan is made of high-quality, moisture-proof and rust-resistant PP material, high efficiency and long service life. The vent fan performs reliably even in humid environments, ensuring long-term stable operation. Ultra-Quiet High Airflow Performance: This ceiling-mounted ventilation fan delivers 111 CFM airflow at 1300 RPM while operating at only 1.0 Sones, providing powerful ventilation with quiet, noise-free operation. Sleek Modern Aesthetic Design: Featuring a clean, stylish modern appearance, this exhaust fan blends seamlessly with any home decor and enhances the overall look of your space. Easy Installation & Maintenance: Complete with detailed instructions, screws and all necessary accessories, this fan can be installed by one person in about 10 minutes. Please confirm dimensions: panel 10"×10", mounting hole 8"×8", duct diameter 4 inches. Premium Quality & Reliable Support: Each exhaust fan is rigorously tested for stable performance and durability. We provide professional customer service to ensure your satisfaction.