I purchased a ventilation fan, but the size was wrong and I couldn't use it. I opened the box, but it's unused, and the bag and box are still intact. YuaSupplies [YUASAPRIMUS] General Kitchen Ventilation Fan YNK-25 For general kitchens Pull-cord switch interlocking shutter Body made of steel External dimensions (cm): 35.5 (height) x 34.5 (width) x 14.1 (depth) Weight (kg): 2.6 Blade diameter: 25cm Mounting wooden frame: 30cm Power consumption (50/60Hz): 29/33W Air volume (m3/min): 12.5/12.5 Noise (50/60Hz): 45/45dB *The blades are not made of steel.