| 摘要 |
A ventilation system is provided to prevent the loss of power by ventilating with natural convection without separate power, and to ventilate without being influenced by malfunction of equipment, power failure, etc. A ventilation system includes a ventilation frame(10) having a circulation hole, a ventilation interception plate(20) installed to one side of the ventilation frame to open and close the circulation hole, an indoor ventilation cover coupled to one side of the ventilation frame to be detachable and provided with at least one or more ventilation holes(31), and an outdoor ventilation cover(40) coupled to the other side of the ventilation frame to be detachable and provided with at least one or more ventilation holes(41). |
