| 摘要 |
A natural ventilation apparatus for windows and doors is provided to guide the inflow of natural fresh air and the exhaust of pollutants by convection of natural air temperature and density differences by installing to windows and doors of a building. A natural ventilation apparatus for windows and doors includes a ventilation unit(100) composed of inner, outer frames and an air controller installed to control air coming in an inner air passage of the inner, outer frames, and a regulation unit(200) composed of a frame inserted to two ends of the ventilation unit, a spinner(220) coupled to the frame to be rotatable and connected with the air controller to control the incoming air, and an air control lever coupled to the spinner to control ventilation. |
