The CO parameter, or "Continuous Operation", indicates whether a given cooler is designed and constructed for uninterrupted operation. This means that the device is capable of operating reliably 24 hours a day, 7 days a week, without requiring regular downtime for rest or the cooling of its own components. Unlike models intended for occasional or intermittent operation, coolers with this parameter are built from more durable materials and have a more robust construction of key parts, such as the compressor or fans. Such a design is typical for industrial applications, server room cooling, or other technologies where any interruption in cooling could cause equipment damage or a production process stoppage.