Adjustable side panels included This kit includes adjustable side panels that guarantee an efficient airtight seal, improving energy efficiency throughout the seasons. Allergen protection system Designed with advanced insulation materials to keep out airborne particles and dust, creating a healthier indoor atmosphere while minimizing wind and noise disruptions. Easy installation process Enjoy hassle setup with pre installed panels that fit seamlessly into your window in just minutes, no tools required. Climate control solution Reduce the workload on your AC unit by retaining warmth during cold months and blocking unwanted heat during summer, all while saving on energy costs. Use scenarios Drafty window in winter to improve comfort and energy efficiency Small apartment or rental property where tool , quick installation is beneficial Bedroom or home office near a busy street to reduce noise and dust while maintaining climate control