Zero Breeze Universal Window Seal Cloth for Portable Air Conditioners

Designed to fit casement (inward/outward opening), bottom-hung (awning), and sliding windows or doors. This sealing cloth creates a tight, weatherproof barrier against hot air, rain, and insects. It is the perfect solution whether you use a ZERO BREEZE Mark 2, Mark 3, or any other portable AC with an exhaust hose.
Dimension Longest Straight Edge: 3 Meters (approx. 118 inches) Shortest Straight Edge: 1.54 Meters (approx. 60.6 inches) Slanted Edges (x2): 0.82 Meters (approx. 32.3 inches) each Material: premium fabric with waterproof PU coating (highly effective at blocking rainwater and preventing cold air loss) Zipper Length: 1.5 Meters (approx. 59 inches)
In the Box: 1 x Window Seal Cloth 1 x Roll of Velcro Tape (Note: Exhaust hose not included)
Step by Step Guide （Bottom-Hung / Awning Window Example）
1. Clean & Tape Thoroughly wipe down the window frames to remove any dust. Stick the Velcro tape along both the inner window frame (stationary frame) and the outer window sash (the moving window pane).
2. Attach the Seal Cloth Inner Frame: Locate the longest straight edge (3M) of the cloth. Starting from the top corner, press this edge firmly onto the Velcro along the inner window frame. (Tip: You can trim any excess fabric at the ends if needed.)
Outer Sash: Once the inner frame is secure, pull and press the slanted edges of the cloth onto the Velcro along the outer window sash.
3. Zip & Vent Once the cloth is fully secured to both the inner and outer frames, unzip the middle, feed exhaust hose through, and zip it tight to lock out the heat.
Check out our installation video to see exactly how it's done!