Features of concealed air conditioning! Ability to direct air to more than one area through "Ducts" No noise from the indoor unit due to its distance from the air-conditioned space and its frequent presence in corridors Easier maintenance and less electricity consumption compared to central air conditioning Medium installation cost compared to other systems Important points about concealed air conditioning! Each air conditioning system ("concealed air conditioning, central air conditioning, and also desert air conditioning") has architectural and structural requirements that must be considered when choosing the appropriate air conditioning system. In the concealed air conditioning system, the indoor units and air ducts occupy space in the suspended ceiling, which must be taken into account during design. For example, the height of the indoor units and air ducts ranges between (30cm to 50cm) This is followed by gypsum work, which also occupies a space of approximately 10cm. Therefore, the ceiling height must be considered to be at least approximately 3.50 meters to accommodate these spaces.