Feature:1. INTIMATE DESIGN: The ventilation fan has a handle, very easy for carrying. Four fixed rubber feet allow for stable standing.2. HIGH SPEED: The motor speed of 3300r per minute is suitable for long term ventilation, can quickly move a large amount of air, with noise as low as 61db.3. PURE COPPER MOTOR: This portable ventilation fan adopts pure copper winding motor, with high speed and high capacity output.4. STURDY HOUSING: Heavy duty cylindrical fan is equipped with sturdy steel housing, providing excellent durability and extending its service life.5. WIDE USAGE: Portable blower fan is suitable for factories, basements, shipyards, farms, granaries, warehouses, kitchens, offices, workshops and more.Specification:Item Type: Blower FanMaterial: Steel, Pure CopperModel: CTF 20Noise: 61DBPower: 230WTotal Pressure: 295PaSpeed: 3300RPM Per MinuteAir Volume: 30m Per Minute.Package List:1 x Blower Fan1 x User ManualNote:The hose needs to be purchased separately.