Key Features 6 Blades: The 6 streamlined design blades are more powerful compared to the 3 or 4 blades exhaust fan on the market. The aluminum material of these blades can also be rust-resistant, corrosion-resistant, and easy to clean. Low Noise: The built-in copper motor is lightweight and has low vibration. Therefore the portable ventilator fan runs more stably with a noise level of less than 75dB. High Wind Pressure: The wind pressure of this portable ventilator fan is up to 280pa, which can deliver the air to a greater distance. This can be applied to larger areas such as warehouses or workshops. Large Air Volume: The 6 fan blades can make the fan reach an air volume of 13600m³/h, which is large enough to change air very quickly. This can effectively improve the muggy environment and keep the ventilation smooth. High Stability: The bottom support bar of this item is square that can be placed steadily on the ground. Universal wheels with brakes allow the fan to operate without moving. Therefore this fan has extremely high stability. One-way Valve Design: This portable ventilator fan is a one-way valve design, which allows the air to flow from the inlet to the outlet, so as not to reverse the suction. This effectively removes the exhaust gas. Fast Speed: The all-copper motor makes this portable ventilator fan rotate up to 2800r/min. This makes the portable ventilator fan operate faster and its work efficiency will be accelerated. Adjustable Angle: There are two knobs on the side of the portable ventilator fan to adjust the fan up and down within a range of 90°. You can adjust the orientation of the air vents according to the needs of the environment. Durable Materials: The main body of this portable ventilator fan is made of high-quality iron with a spray surface, and the fan blades are made of aluminum. These materials are very durable and not easy to rust. Application This item is suitable for ventilation or heat dissipation in tunnels, factories, warehouses, shopping malls, fire escapes, etc. Specifications Model: SFY 4-2 Power Source: Corded Electric Mounting Type: Free Standing Color: Orange Product Material: Iron Blades Material: Aluminum Voltage: 220V Plug Type: European Plug Power: 1100W Speed: 2800r/min Noise: ≤75dB Air Volume: 13600m³/h Wind Pressure: 280Pa Adjustment Angle Range: 90° Wire Length: 40cm/15.75" Gross Weight: 19.4kg/42.77 lbs Net Weight: 17.6kg/38.8 lbs Package Size: 64*54*38cm/25.19*21.26*14.96" Product Size: 49*30*64.5cm/19.29*11.81*25.39" Fan Diameter: 47cm/18.5" Fan Blade Diameter: 40cm/15.75" Package Included 1* Portable Ventilator Fan