1. The rotation of the fan can effectively reduce the temperature/circulating air; 2.3 gears to adjust the wind; the larger the size, the stronger the wind, suitable for homes, offices, warehouses, factories, and commercial 3. Mechanical control, / can be steered, wide-angle air supply ./ thicker material, safer ./ simple operation, clear and clear 4. Floor-standing design, extended power cord, easy to move Size: 14in(15㎡) 16in (25㎡) / 18in(40㎡) / 20in (50㎡) Speed: 1300r / min Colour: Black ----Note: The voltage of this product is 220V; when purchasing in the United States, Canada, Mexico, and Japan, we will use it with a transformer for free; ----Note: When purchasing at sites in the UK, France, Germany, Italy, Spain, the Netherlands, Sweden, and Australia; we will equip adapters for each country Maintenance tips: Before cleaning, please unplug the electric fan, let it cool down, and then wipe it. 1. Due to manual measurement, please allow 1-3cm error 2. The picture is for reference only, please refer to the actual product display. Due to the influence of the monitor and light, the actual color may be slightly different from the picture. 3. Service: If you have any questions, please leave a message, we will reply within 24 hours and provide the best service