A window

The invention provides a window. The window includes a screen window and a support device for the screen window, and the window is characterized in that the effective using area S2 of the screen window is larger than the using area S1 of the screen window. Because S2 > S1, the efficiency of air-exchange is observably improved, the freshness of indoor air is greatly improved, and health is observably enhanced. The secondary decoration is avoided. A window screen supporting frame is saved by utilizing an antitheft fence. The window is low in cost. 本发明提供了种窗。种窗，包括纱窗及其支撑装置，其特征是纱窗有效使用面积S2大于纱窗使用面积S1。因为S2＞S1，换气效率显著提高，室内空气新鲜度极大地提高，显著增进健康。避免了二次装修。利用防盗栅栏而节省了窗纱支撑架。成本低。