A cassette air conditioner (AC) is a type of split AC system typically used in commercial and larger residential spaces. It is designed to be mounted on the ceiling, with the unit flush against the ceiling panel, providing a discreet and unobtrusive cooling solution. The main feature of a cassette AC is its ability to distribute air evenly across a large room. The unit usually has a four-way air flow system, which enables it to push air in multiple directions, ensuring better airflow and consistent temperature control throughout the room. Cassette ACs are often more efficient than traditional wall-mounted units because they use advanced technology to cool larger areas more effectively. The indoor unit is typically installed in the ceiling void, while the outdoor unit is placed outside the building. These systems are available in various capacities, and their installation requires ceiling space, making them ideal for offices, commercial buildings, and large living spaces. Some cassette AC models also feature smart controls, allowing users to adjust settings remotely via mobile apps or integrated building management systems.