It has strong ventilation with a fully enclosed pure copper motor that provides fast fume suction and air circulation, helping to keep indoor air clean and comfortable. Seven thickened blades deliver powerful and uniform airflow and are resistant to deformation. The fan operates stably with minimal vibration, ensuring high air volume while reducing noise. Constructed from iron material for durability. Available in multiple sizes: 4 inch, 6 inch, and 7 inch. Easy to install, suitable for use in kitchens, bathrooms, offices, meeting rooms, restaurants, supermarkets, cinemas, internet cafes, workshops, and waiting halls. Item Name: Exhaust Fan Material: Iron Features: Low Noise, Strong Wind, High Suction Voltage: 22V Frequency: 50 Hz Size Details: 4 Inch Black, Diameter: 10cm/3.94" (Approx.) 4 Inch Black, Length: 7.3cm/2.87" (Approx.) 6 Inch Black, Diameter: 15cm/5.91" (Approx.) 6 Inch Black, Length: 15cm/5.91" (Approx.) 7 Inch Black, Diameter: 18cm/7.09" (Approx.) 7 Inch Black, Length: 14cm/5.51" (Approx.) 4 Inch White, Diameter: 10cm/3.94" (Approx.) 4 Inch White, Length: 7.3cm/2.87" (Approx.) 6 Inch White, Diameter: 15cm/5.91" (Approx.) 6 Inch White, Length: 15cm/5.91" (Approx.) 7 Inch White, Diameter: 18cm/7.09" (Approx.) 7 Inch White, Length: 14cm/5.51" (Approx.) Notes: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Slight dimensional variations may occur due to manual measurement. Package Includes: 1 x Exhaust Fan