Multifunctional powerful exhaust fan with a fully enclosed pure copper motor (up to 2800 rpm) provides efficient fume extraction and ventilation, helping maintain fresh and comfortable indoor air. Durable construction features 7 thickened blades for strong, uniform airflow, resistant to deformation. Operates smoothly with low vibration and reduced noise while delivering high air volume. Designed for easy installation with included mounting hardware and instructions; no professional help required. Equipped with a protective grille securely fastened with four screws to prevent accidental contact, minimize noise, and allow easy removal for cleaning. Suitable for various applications including kitchens, bedrooms, offices, basements, warehouses, garages, and other areas requiring regular or continuous ventilation. 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