A 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 air conditioners are popular in residential and commercial settings due to their flexibility and ease of installation. They can be mounted on walls, ceilings, or floors, and are available in various sizes to suit different spaces. Additionally, many models come with features like remote control and programmable settings for added convenience.