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Keep Cool Air In, Heat Out
The Venlok portable AC window seal is a waterproof blended-fabric panel that stretches across your window opening and zips tight around your exhaust hose, cutting off the hot-air blowback that quietly kills your AC’s cooling power. Available in 3-meter and 4-meter lengths to fit virtually any window size.
Perfect for renters, apartment dwellers, and homeowners who run a portable air conditioner in summer and want a clean, no-drill, no-damage fix. The adhesive Velcro edge sticks securely to the window frame and peels off cleanly at the end of the season, ready to reuse next year.
WHY IT WORKS BETTER
- Airtight Zip Seal: The metal zipper closes firmly around your exhaust hose, eliminating the hot-air gap that forces your AC to work overtime.
- Anti-Mosquito Barrier: The sealed fabric panel blocks mosquitoes and insects from sneaking in through the window opening around your AC hose.
- Waterproof Fabric: Blended waterproof cloth sheds rain and resists humidity, keeping your window area dry even on stormy summer nights.
- Tool-Free Installation: Press the adhesive Velcro strip to the window frame, hang the panel, and zip it shut around the hose in under 5 minutes.
- Flexible Length Options: Choose 3m or 4m to match your window perimeter, covering casement, double-hung, and sliding window types.
- Reusable and Storable: The panel folds flat and stores compactly, so you can pull it out each summer and get the same airtight result.
The Upgrade Your Portable AC Has Been Waiting For
Most portable AC window kits that come in the box are rigid plastic sliders that leave gaps, look cheap, and never quite fit. The Venlok seal replaces all of that with a flexible, full-coverage fabric panel that actually seals the entire opening. Your AC runs less, cools more, and your electricity bill thanks you.
One seal. One summer. A noticeably cooler room.
Your Questions, Answered
Yes, in most cases. The 3-meter version fits windows with a perimeter up to 300 cm, and the 4-meter version covers up to 400 cm. Measure your window opening perimeter before ordering and choose the length that matches or slightly exceeds it.
No tools needed. The adhesive Velcro strip presses onto your window frame surface and peels off cleanly when the season ends, leaving no permanent damage. It is designed specifically for renters and anyone who cannot drill into window frames.
No. The zipper closes tightly around the exhaust hose, and the fabric panel covers the full window gap, so mosquitoes and other insects have no entry point when everything is properly zipped and sealed.
Absolutely. When hot outdoor air leaks back in around the exhaust hose, your AC has to work much harder to maintain the set temperature. Sealing that gap means the cooled air stays in and the hot air stays out, making a real, noticeable difference in room comfort and energy use.
Yes. The seal is designed to be universal and works with most portable air conditioner exhaust hoses. The zip opening accommodates standard hose diameters used by brands like LG, Whynter, Black and Decker, Honeywell, and others.
Yes, very easy. The Velcro adhesive system lets you take the panel down and re-hang it in seconds. Many users take it down on cooler days and re-install it when temperatures climb again.
Yes. The blended fabric panel can be hand-washed with mild soap and water and air-dried. Avoid machine washing or high heat, which may affect the adhesive Velcro strip.
📏 What’s Included & Key Details
- Material: Blended waterproof fabric (polyester-cotton blend)
- Available Lengths: 3 meters / 4 meters
- Closure Type: Metal zipper hose port
- Attachment Method: Adhesive Velcro strip (no drilling)
- Color: White
- Package Weight: Approx. 290 g
- Package Dimensions: 4 x 31 x 24 cm
- Compatibility: Universal portable air conditioner exhaust hose
- Reusable: Yes
- Package Contents: 1x window seal cloth panel with pre-applied adhesive Velcro edge
Our Commitment
Every Venlok order ships with free tracked delivery and is dispatched within 24 hours of purchase. Not satisfied? Our 31-day hassle-free return policy means you can return it for a full refund, no questions asked.
We stand behind every product we sell because your comfort and satisfaction are what Laviski is built on.
