A Split AC, or Split Air Conditioner, is a type of cooling system that consists of two main parts: an indoor unit and an outdoor unit. The indoor unit is installed inside a room and is responsible for blowing cool air, while the outdoor unit contains the compressor and condenser, which expel heat outside. This design allows for quieter operation indoors and more efficient cooling. Split ACs are popular in residential and commercial spaces due to their energy efficiency and ease of installation. They come in various capacities to suit different room sizes and can also include features like remote control and programmable settings for added convenience.