Universal Window Seal Kit for Portable AC & Dryer Vents

Universal Window Seal Cloth for Portable AC & Tumble Dryer

Keep your home comfortable year-round with this Universal Window Sealing Kit — a smart, tool-free solution for sealing the gap around portable air conditioner hoses and tumble dryer vents. Made from durable 100% polyester, this reusable seal cloth blocks hot air, drafts, and moisture from sneaking past your window frame, helping your portable AC run more efficiently and keeping energy bills in check.

Made in Mainland China.

Key Features

• Blocks Hot Air & Reduces Energy Use: Creates a tight barrier around your AC hose or dryer vent to prevent warm air return flow, so your portable unit cools more effectively and uses less electricity.
• Waterproof & Windproof Polyester Fabric: Crafted from reliable 100% polyester, this seal cloth offers long-lasting protection against drafts and moisture — keeping your indoor environment consistently comfortable.
• Quick Zipper Closure — No Drilling Required: Simply open the zippered panel, insert your air conditioner hose or dryer vent, and zip it shut. Installs in minutes directly into your window frame without any tools or permanent modifications.
• Reusable Seasonal Design: Leave it in place between seasons — open or close the vent panel anytime. No need to remove it when temperatures drop; just zip it closed and reinstall your hose next summer.
• Universal Compatibility: Works with portable air conditioners, tumble dryers, exhaust dryers, and dehumidifiers. Adjusts to fit tilt sashes, push-out casement windows, top-hung skylights, and inward-opening casement windows with left or right opening.

Specifications

What's in the Box

• 1 × Air Conditioning / Dryer Vent Sealing Cloth

Note: Due to different display settings and lighting, the actual product colour may vary slightly from images shown. A measurement tolerance of 1–3 cm is normal due to manual measurement.

Ideal For

Bedrooms, living rooms, dormitories, apartments, and any home space where a portable AC or dryer vent exits through a window. A great companion for keeping any room cool and well-ventilated.

Looking for more home comfort and organisation solutions? Check out our All-Season Cooling Car Seat Cushion – Breathable & Ergonomic or keep your space tidy with the Large Capacity Zipper Fabric Organizer Bag. For a quick clean-up around your AC unit, the BALASHOV 2500W Handheld Steam Cleaner is a perfect partner.

Learn more: EPA registered disinfectants

Frequently Asked Questions

Q: What window types does this universal window seal kit fit?

A: This window sealing cloth is compatible with top-hung skylights, push-out casement windows, and inward-opening casement windows. It adjusts to fit tilt sashes with left or right opening, making it suitable for most standard home windows.

Q: Does the window seal kit work with both portable air conditioners and tumble dryers?

A: Yes! The universal seal cloth is designed to work with portable air conditioners, tumble dryers, exhaust dryers, and dehumidifiers. Simply insert the hose or vent through the zippered opening and secure it in place.

Q: Do I need to drill or make permanent changes to install this window seal?

A: No drilling or permanent modifications are required. The sealing cloth fits directly into your window frame and uses a zipper closure system for a secure, hassle-free installation in minutes.

Q: Can I reuse this window seal kit across multiple seasons?

A: Absolutely. The kit is fully reusable — you can leave it installed in your window frame year-round and simply open or close the zipper panel as needed. When the season changes, just close the vent and keep the seal in place until you need it again.