We can simultaneously close and… open a parallel tilt window. After turning the handle, the window is set to the ventilation position—the sash subtly moves away from the frame along the entire perimeter by a few millimetres. The window then gives the impression of being closed, although in reality, it allows free airflow.

Thanks to parallel tilt windows, we can ventilate the room while maintaining a high level of protection against noise, rain, strong wind, and… mosquitoes, which cannot pass through the gap created in this way.