| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a ventilation system capable of performing indoor ventilation properly throughout a year, while taking natural air supply as a base, even in a multi-story building.SOLUTION: In a multi-story building (1), in a habitable room (111) on the first floor, an air supply opening (21) is provided for naturally supplying the outside air, and in a habitable room (121) on the upper floor, a hybrid air supply unit (3) is provided. The hybrid air supply unit (3) includes a machine air supply device (34) for forcibly feeding the outside air to the habitable room from an air supply port (32) located in the habitable room (121) on the upper floor, and it performs natural air supply in a warm season, and performs machine air supply by the machine air supply device (34) only during a cold season.</p> |
