| 摘要 |
PURPOSE:To provide a ceiling recessed type ventilator in which dew condensation, mold can be prevented due to flow of the air in a room to the space under a roof. CONSTITUTION:The ceiling recessed type ventilator comprises a flange externally protruding at a lower end of a ventilator body 1 formed with a suction port 2 at its lower surface and having a first flange 11 mounted at a wood frame 8 provided stepwise at a ceiling 7 and a second flange 13 covering the edge of a ceiling plate 12 provided at the ceiling. |
