VEVOR, GYGFJ12YCD10MGZ01V1, 12” Extractor Fan Blower, Portable, 10m Duct Hose, High Rotation Rubber Feet Features: This industrial fan is designed to maximize Air Flow: 3900 m3/h with low noise. 7 metal blades to be anti-rust of stable performance. Its impeller and blades are of a high resistance to flammability. Fan Diameter: 12 inch/300 mm. Two high-density covers to ensure industrial mobile fan working continuously. Long-lasting and sturdy metal frame for stable efficiency, low noise, less vibration. Superior capacitor, soft start.One stainless steel piece for well operation. Easy to use and maintain. The 12″ extractor fan is designed with high quality metal, compact structure and beautiful appearance of surface paint treatment. Portable and practical with a handle. 4 rubber feet to fix it. The lightweight for a fast and easy installation. Applied hard-wearing, flexible vinyl woven polyester with carbon wire spring and adhesive tape, smooth inside wall to be water-proof. Designed to be super flexible and flame-retardant. Length: 16ft/5 m. Ropes adjustable. D-shaped rings are set for hanging the pvc flexible duct freely. Ideal for hotels, hotel kitchen, playground, shopping malls, bars, etc.