Portable AC Window Vent Seal Kit – Waterproof Cloth 2M/3M

Keep your home cool and energy-efficient with the Portable AC Window Vent Seal Kit. This waterproof polyester sealing cloth creates an airtight barrier between your portable air conditioner hose and your window frame — blocking warm outside air from creeping back in and letting your AC work smarter, not harder.

Made in Mainland China.

Why You'll Love It

• Energy-Smart Design: By sealing off the window gap around your AC exhaust hose, this kit prevents warm air re-entry, helping your unit maintain the set temperature with less effort — lowering your energy bills all summer long.
• Durable, Waterproof Polyester: Crafted from 100% high-quality white polyester, this cloth is built to withstand moisture, humidity, and wind. It holds up season after season without fraying or losing shape.
• No Tools, No Drilling: Installation is a breeze — place the hose through the opening, unzip the seal, position it across the window frame, and zip it tight for a snug, airtight fit. Remove just as easily when the season ends.
• Year-Round Convenience: No need to remove the seal when temperatures drop — simply open or close the window beneath it. When summer returns, you're already set up and ready to go.
• Versatile Compatibility: Fits a wide range of window styles including left/right-opening, top-hung skylights, push-out casement, and inward-opening casement windows. Also compatible with portable dryers, exhaust fans, and dehumidifiers.
• Available in Two Lengths: Choose from 2M or 3M seal lengths to suit your window width perfectly.

Specifications

• Material: 100% Polyester (Waterproof)
• Color: White
• Seal Length: 2M / 3M (options available)
• Window Types: Top-hung skylight, push-out casement, inward-opening casement, left/right sliding
• Compatible With: Portable/mobile air conditioners, exhaust dryers, dehumidifiers
• Style: Modern, clean white finish

What's in the Box

• 1× Air Conditioner Window Seal Cloth

Note: Due to monitor and lighting differences, the actual color may vary slightly from images. Please allow a small margin for manual measurements.

Related Products You May Like

• 1.2L Smart Electric Dehumidifier with Remote & Anion Purifier
• 1.5L Handheld Steam Cleaner Touch Screen 1800W | CE Certified

For more information on energy-efficient home cooling, visit the U.S. Department of Energy – Home Cooling Tips.

Learn more: Automotive air conditioning

Frequently Asked Questions

Q: What window types is this AC window vent seal kit compatible with?

A: This portable AC window seal kit is compatible with a wide variety of window styles, including left/right-opening windows, top-hung skylights, push-out casement windows, inward-opening casement windows, and horizontal sliding windows. It is also suitable for use with dehumidifiers and exhaust dryers.

Q: Do I need any tools or drilling to install the AC window seal cloth?

A: No tools or drilling are required. Simply position the seal cloth across your window frame, thread the AC exhaust hose through the opening, and zip the seal closed for a secure, airtight fit. It can be removed just as easily at the end of the season.

Q: What sizes does the window vent seal come in?

A: The AC window sealing cloth is available in two lengths — 2 metres and 3 metres — so you can choose the size that best fits the width of your window frame for a proper, gap-free seal.

Q: Is the sealing cloth waterproof and suitable for all weather?

A: Yes. The seal is made from durable, waterproof 100% polyester, making it resistant to moisture, humidity, and wind. It is designed for long-term use and can remain in place even when your portable AC is not running — simply open or close the window as needed.