The document describes a tangential fan model AKS-680-240 from Natron Equipment & Spares Pvt. Ltd. It has a galvanized steel body and aluminum impeller that make it resistant to corrosion and high temperatures. It generates low noise and vibration with a forward inclined, thin-bladed impeller. The fan is customizable for speed range and motor/power configurations and has self-lubricating bearings for silent, long life performance.