Well Sealed Window Vents: The insulated foam panels create a tight seal around your windows, effectively blocking hot air from entering and cold air from escaping, thus maintaining a comfortable indoor environment while minimizing outside noise intrusion. Compatibility and Custom Fit: These Air Conditioner Window Insulated Foam Panels can be easily trimmed to accommodate various sizes of portable AC window seal kits, a fit with most models available on the market, making them a versatile solution for any home. Durable Material and Performance: Constructed from a robust special foam material, these Air Conditioner Window Insulated Foam Panels offer exceptional insulation properties along with wear resistance and antiaging features, promising longterm use and reliable performance for your air conditioning needs. Pack Contents and Coverage: The package includes three 16.5inch panels that can cover up to 50 inches when combined, allowing you to the coverage to match your portable air conditioner window seal plates. Practical Use Scenarios: In apartments or rental homes, seal a standard window for a portable AC to reduce energy loss and dampen outdoor noise. In home offices or bedrooms, install during hot months to improve cooling efficiency and comfort without adding bulk. In seasonal setups or garages, quickly seal windows for temporary cooling without permanent installation.