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

Keep the Cool In & the Heat Out — No Tools Required

Say goodbye to wasted energy and uncomfortable drafts. This Air Conditioner Window Vent Seal Kit creates an airtight barrier between your portable AC exhaust hose and the window frame, stopping warm outside air from sneaking back into your room. Made from durable, waterproof 100% polyester cloth, it's built to last through many seasons of use. Made in Mainland China.

Why You'll Love This AC Window Seal

• Energy-Saving Design: By blocking return airflow and preventing warm air infiltration, this seal helps your portable AC run more efficiently — lowering electricity consumption and reducing your carbon footprint.
• Waterproof & Wind-Proof: Crafted from heavy-duty polyester fabric that stands up to moisture, humidity, and outdoor weather — ensuring long-term, reliable performance.
• Tool-Free Installation: No drilling, no screws, no mess. Simply place the exhaust hose inside the window frame, unzip the seal, and tighten for a snug, airtight fit. Done in minutes.
• Year-Round Convenience: No need to remove the seal when temperatures drop — just open or close your window as needed. Reinstalling next summer is just as effortless.
• Wide Compatibility: Fits left/right-opening, top-hung, skylight, push-out casement, and inward-opening casement windows. Works with portable/mobile air conditioners, exhaust dryers, and dehumidifiers.
• Two Size Options: Available in 2M and 3M lengths to accommodate a variety of window widths.

Specifications

• Material: 100% Polyester (Waterproof)
• Color: White
• Seal Length: 2M / 3M (choose your size)
• Style: Modern
• Compatible Window Types: Top-hung, push-out casement, inward-opening casement, sliding horizontal
• Origin: Made in Mainland China

What's in the Box

• 1× Air Conditioner Window Seal / Vent Kit

Notes

• Colors may vary slightly due to monitor settings and lighting conditions.
• Please allow a minor measurement deviation due to manual measurement.

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Helpful External Resource

Learn more about home energy efficiency and how proper sealing can reduce energy use from the U.S. Department of Energy – Air Conditioning Guide.

Frequently Asked Questions

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

A: This AC window seal kit is designed to fit a wide range of window types, including left/right-opening sliding windows, top-hung skylights, push-out casement windows, and inward-opening casement windows — making it highly versatile for most homes and apartments.

Q: Do I need any tools or drilling to install the air conditioner window seal?

A: No tools or drilling are needed. Simply place the AC exhaust hose through the designated opening in the seal, position it in your window frame, unzip the seal, and tighten it for a secure, airtight fit. Installation takes just a few minutes.

Q: Is this window seal compatible with dehumidifiers and exhaust dryers as well?

A: Yes! In addition to portable and mobile air conditioners, this window vent kit is also compatible with exhaust dryers and dehumidifiers, making it a multi-purpose solution for managing indoor climate and air quality.

Q: What is the window seal made of, and is it waterproof?

A: The seal is made from 100% durable polyester fabric that is both waterproof and wind-resistant, ensuring it holds up reliably through varying weather conditions and repeated seasonal use.