The Midea MSCE (CELEST) series is a standard inverter air conditioner utilizing R32 refrigerant. It's designed for energy efficiency and reliable cooling performance. The 'Standard Inverter' technology allows the compressor to adjust its speed, consuming less energy and maintaining a consistent temperature. The R32 refrigerant is more environmentally friendly than older refrigerants. It's available in multiple horsepower options (1.0HP, 1.5HP, 2.0HP, and 2.5HP) to suit different room sizes. The CELEST designation might refer to specific features or design elements within the MSCE series, but generally indicates a modern and efficient air conditioning solution.