Polyester Sliding-Window Seal for Portable AC

Close the gap around a portable AC exhaust setup

Leaving an open gap around a portable air-conditioner exhaust hose can make the window arrangement feel unfinished. This sliding-window seal cloth is designed to cover that area while accommodating an exhaust setup. Its silver-coated appearance and long narrow shape provide an alternative to leaving the whole opening exposed, with three stated sizes to compare against your particular window.

The material is listed as 100% polyester. The main photograph identifies a lightweight single-layer, silver-coated fabric and shows it used beside a portable air conditioner. That is an installation example rather than a complete cooling appliance or exhaust-hose bundle. The unit, hose, window and room furnishings pictured are not established contents of this fabric-seal listing.

The selector offers 25 × 100 cm, 25 × 180 cm and 25 × 250 cm labels. Measure the window gap you intend to cover and compare both dimensions rather than choosing on length alone. Those labels do not establish a universal fit for all sliding windows or a complete circumference measurement for a hinged window. The source specifically positions this cloth for sliding-window use.

The intended purpose is to help separate the open exhaust area from the room around it. A silver coating is described, but no quantified insulation value, waterproof test or independently measured energy saving is supplied. The seal should therefore be selected as a physical installation accessory rather than a guaranteed way to achieve a particular indoor temperature or electricity reduction.

The written information does not identify the hose-opening diameter, exact fastening components or included adhesive quantities. Confirm the attachment method for your window and hose before purchase. Do not assume that a zipper, hook-and-loop strip or rigid adaptor is included simply because another window-seal product uses one. A compatible arrangement depends on the actual frame, opening and appliance instructions.

Follow the air-conditioner manufacturer’s exhaust guidance and keep the hose path unobstructed. Check the seal’s position after installation rather than assuming it is weatherproof or a security barrier. Care instructions, outdoor exposure limits and replacement fasteners are not specified online, so follow the guidance supplied with the cloth. Choose the size for your measured opening and the documented polyester fabric format, keeping appliance compatibility and installation requirements separate from broad efficiency claims.

Product details

• Material: 100% polyester; silver-coated single-layer appearance.
• Use: sliding-window exhaust arrangement for portable air conditioners.
• Size labels: 25 × 100 cm, 25 × 180 cm, 25 × 250 cm.
• Air conditioner and hose are not established inclusions.
• Hose opening size, attachment parts and adhesive quantities unspecified.
• No quantified insulation, waterproof rating or energy-saving guarantee.