The ventilation window is a kind of door and window decoration with shutter structure, but it is different from the ordinary Window blind, and its structure is relatively solid. Breathable windows not only have decorative functions, but also regulate indoor light, improve indoor privacy, and can also provide sound insulation, dust reduction, and reduce indoor air pollution. Why do people usually choose ventilation windows? This window style that has emerged in Europe and America has attracted the attention of Chinese people! Fashionable and beautiful, the simple and atmospheric breathable curtains give a fresh and natural feeling. The layered curtains can create different spaces of light and shadow, highlighting the sense of hierarchy. Purchasing suggestions: Firstly, check whether the gap between the profiles and accessories is tight and whether the sliding is smooth. Balcony windows with poor quality and design often produce significant noise and a rough feel when the window sashes slide. 2、 Are safe solid pneumatic steel rivets used. Some manufacturers use ordinary steel rivets to reduce costs, which can cause frameless balcony windows to loosen or even fall off over time. 3、 Has the glass passed the national 3C mandatory safety certification. Due to the lack of a central vertical frame for frameless balcony windows, there is a high demand for glass. Some manufacturers, in order to reduce costs, use ordinary tempered glass, or even semi tempered glass, which can reduce costs by more than 30-60 yuan per square meter. 4、 Whether the manufacturer's technology is professional and reliable, and whether the after-sales service is complete and guaranteed. There are high requirements for the design, production, and installation of frameless balcony windows, such as some balconies with staggered heights. If the manufacturer's technology is not up to standard, it is difficult to handle them properly; There is also a comprehensive after-sales service, which is the cornerstone of quality assurance for frameless balcony windows. 5、 Manufacturer's construction case. The engineering examples that the manufacturer has done are both abundant and lacking in persuasiveness, and by listening to the user experience, I think you should have a clear understanding of how to choose frameless balcony windows.