| 摘要 |
A window frame-like ventilation system is provided that the indoor air is ventilated by effectively insulating indoor and outdoor interval. A window frame-like ventilation system(1000) comprises a ventilating hole(122) for airflow, a first fixing member(10) combined in the window frame, a second fixing member(20) having the vent hole(21) for airflow and combined in the frame in which the first fix member is combined, movable opening and closing member(30) which are arranged between the first and the second fixing member in order to be moved between off-position. |
