Precision Fit An innovative design with adjustable side walls provides an efficient airtight seal and precise seam alignment, reducing drafts and promoting energy efficiency year round. Air-Supported Dust Barrier Blocks pollen and dust effectively while resisting wind and noise, using insulating material to improve indoor air quality. Easy and Fast Installation Preinstalled side panels enable quick setup without additional tools, delivering smooth window mounting that can be completed in minutes and enhancing user experience. Smart Climate Control Reduces electrical load on cooling systems while providing intelligent climate protection to store warmth in winter and block heat in hot weather, delivering comfort and energy savings with minimal effort. Key Attributes Adjustable side walls for a tight, precise fit Preinstalled side parts for tool-free setup Insulating material forms an effective barrier against dust and drafts Designed for airtight sealing and reliable seam alignment Supports year-round energy efficiency and improved indoor air quality Use Scenarios - Renovating a drafty home: install quickly to seal windows, reduce energy loss, and improve comfort without complex installation. - Pollen season: block outdoor dust and allergens while dampening wind and noise, improving indoor air quality. - Seasonal or temporary installations: convenient, tool-free setup for rapid window upgrades in apartments or small offices.