Features 1. Multifunctional Powerful Mute Exhaust Fan: Upgraded fully enclosed pure copper motor (speed up to 2800r/min) provides fast fume extraction and ventilation, helping maintain fresh and comfortable indoor air. 2. Durable Construction: 7 thickened blades deliver stronger and more uniform airflow, resistant to deformation. Operates smoothly with low vibration, ensuring high airflow while reducing noise. Built for long-term performance. 3. Easy Installation: Includes all necessary mounting hardware and clear installation instructions. Can be installed without professional help. 4. Ventilation Fan: Equipped with safety guard nets tightly designed to prevent accidental contact. The net cover is secured with four screws to minimize shaking and noise, is detachable, and easy to clean. 5. Wide Application: Ideal for efficient indoor ventilation in kitchens, bedrooms, offices, basements, warehouses, garages, and other areas requiring continuous or regular air circulation. Specifications Material: Alloy Color: Black, White Size: 15 x 15 cm, 14 x 18 cm, 15 x 20 cm, 15.5 x 24.5 cm Weight: 1200 g, 1550 g, 2050 g, 2700 g Power: 40W, 50W, 80W, 100W Package Includes: 1 x Kitchen Exhaust Fan