- Adjustable Size: This window air conditioner unit cover measures 21L x 15H x 3.5D inches, designed to fit most 5000BTU to 7000BTU window and indoor air conditioning units. - Superior Insulation: Featuring a windblock poly inner liner fused with an outer cover, this cover is easy to install. The embedded cotton lining effectively prevents hot air from escaping and cold air from entering, minimizing heat loss during winter and lowering heating costs. - Secure Fit: The cover includes adjustable straps on both sides and elastic cords around the edges for a snug fit. With two adjustable straps equipped with snap buckles, it ensures the cover stays securely in place while remaining easy to put on and remove. - Durable Material: Crafted from high-quality soft polyester fabric, this indoor AC cover is both washable and durable, making it a perfect match for your home's decor. - Cost-Effective Solution: By eliminating the need to remove and reinstall your air conditioning unit, this cover reduces energy expenses. It not only protects your AC from dust but also keeps your room warm in winter, blocking dust, rain, and snow. Use Scenarios: - Ideal for winter storage, keeping your AC unit protected from harsh weather. - Perfect for seasonal use in homes where the AC is not needed year-round, ensuring energy efficiency. - Useful for maintaining air quality by preventing dust accumulation in unused units.