Concealed air conditioners (Ducted Split) are an ideal solution that integrates the indoor unit into the suspended ceiling to ensure an elegant decorative appearance and superior quietness. They are characterized by high cooling capacities (often 18-60 thousand units) and are suitable for homes and offices, with the availability of energy-saving inverter technology. Top brands include Fuji, Gree, York, and Trane. Key features and drawbacks of concealed air conditioners: Features: Design: Invisible (hidden within the gypsum), preserving the aesthetics of the decor. Performance: Quiet and powerful cooling, suitable for open and large spaces. Efficiency: Electricity savings, especially with inverter technology. Distribution: Flexibility in air distribution through ducts.