This product is a ceiling cassette-type, one-direction air conditioner intended for buildings with sophisticated interiors. In order to drastically reduce interference within the room space, the product has the following features: (1) A thin front panel protrudes less than 30% from the ceiling when compared to conventional products. There’s a two-level layered shape for thinner visual appearance. (2) A flat and square front panel harmonizes with architectural spaces. (3) A remote control receiver unit and operating and display units are integrated with the main body.