A 1.5-ton air conditioner (AC) is a type of cooling system that is designed to provide efficient cooling to an area of about 150-200 square feet. The "ton" measurement in the name of the AC refers to its cooling capacity, and in this case, a 1.5-ton AC can cool an area of approximately 12000 BTU (British Thermal Units) per hour.

A 1.5-ton AC typically consists of an indoor unit that contains the evaporator coil, air filter, and blower fan, and an outdoor unit that houses the compressor and condenser coil. The two units are connected by refrigerant lines that circulate the refrigerant between them.

The indoor unit is usually mounted on a wall, ceiling or placed on a floor stand, and blows cool air into the room while removing hot and humid air from it. The outdoor unit is placed outside the room, usually on a balcony or terrace, and dissipates the heat absorbed from the room to the outside environment.

In addition to cooling, most 1.5-ton ACs also come with features such as dehumidification, air purification, and energy-saving modes. Some models also offer additional features like Wi-Fi connectivity, voice control, and smart scheduling to allow for better control and convenience.

Overall, a 1.5-ton AC is suitable for small to medium-sized rooms, such as bedrooms, living rooms, or offices, and is an ideal choice for those looking for efficient and effective cooling solutions.