Implementing best practices for data centre cooling is crucial to maintaining efficiency, reducing energy costs, and ensuring the longevity of equipment. Key practices include optimising airflow by using blanking panels to fill unused rack spaces, which prevents hot air recirculation and ensures that cool air reaches the servers effectively. Additionally, employing hot and cold aisle containment systems can further enhance cooling efficiency by separating hot exhaust air from cold intake air, reducing the workload on cooling systems. Regular maintenance of HVAC systems and air filters is essential to ensure that cooling units operate at peak performance. Monitoring temperature and humidity levels in real-time allows for adjustments that prevent overheating and ensure optimal conditions. By following these best practices, data centres can achieve significant improvements in cooling efficiency, leading to lower operational costs and improved equipment performance.