| 摘要 |
<p>PURPOSE: A public housing mechanical ventilation system is provided to ventilate the indoor air without opening a window while a fan is operating. CONSTITUTION: A bidirectional inlet is installed at the upper part of a door frame of a bedroom and housing living room. Even if a lower part door is shut, the air is sucked in the living room and bedroom through a ventilation opening. A fan of a gas oven on a cabinet is connected to a bidirectional ventilation fan electrically. If a switch is on, the rooms are ventilated. If it is off, the kitchen is ventilated only.</p> |
