First, the product description ceiling air conditioning units are compact units, compact, direct lifting the ceiling in the building, running low noise unit, complete air filtration, heating or cooling, air and other functions. Lower than the pressure of the unit, suitable for air duct is not complicated project. Ceiling fan coil air conditioning units with supporting small-scale wind or make a new layer between the supplement can also be used in offices, conference rooms, restaurants and other area is not air-conditioned places.