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❄️ Seal in the cool, seal out the hassle!
The MOEGFY AC Window Seal is a 400cm portable, waterproof, and windproof kit designed to enhance mobile air conditioner and tumble dryer efficiency by preventing hot air backflow. Featuring easy, tool-free installation with adhesive tape and zippers, it fits tilt and casement windows and keeps insects and dust out. Reusable and eco-conscious, it’s a must-have for millennial professionals seeking smart, sustainable home cooling solutions.








| ASIN | B087WT2XZF |
| Best Sellers Rank | 1,824 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 1 in Air Conditioner Parts & Accessories |
| Brand | MOEGFY |
| Capacity | 350 Millilitres |
| Colour | White |
| Customer Reviews | 4.0 4.0 out of 5 stars (3,421) |
| Date First Available | 30 April 2020 |
| Item Weight | 270 g |
| Material | Nylon |
| Model Number | KTB-400CM |
| Product Dimensions | 25 x 18 x 3 cm; 270 g |
| Special Features | Portable,Waterproof |
| Voltage | 5 Volts |
T**R
Great seasonal solution
We have only been using it this summer but it was easy to fit, easy to use and works well. Someone has obviously thought about the practicalities of using it as you can open the zip in two places so you can zip up around your hose and also open the zip in a seperate place to use your window handle to open/close the window. You can easily close your window without having to remove the seal as it just folds up as you close the window although it your that bothered it only attached with velcro so you can remove it if you think it looks bad. Reading reviews for multiple products i did see a regular issue with all these kits which we have encountered which is near the hot air exhaust the sticky parts seem to detach occasionaly but we this only seems to happen if you have it taught and they have always just stuck back on for us at the moment. Whether this works long term.i.e. we can reuse it next year we will have to see but it seems fine at the moment.
L**N
Instructions could be clearer, but it's not that hard to install and works ok.
Seems to work ok. Does it provide an airtight seal? No. Does it need to? No. Does it keep insects out? Yes. Are the instructions clear? No. Do you need them? Not really. Stick the tape around the window. Stick the tape around the frame. Attach the material to both - make sure the thickest bit of material is in the middle of the widest gap. Undo the zip, stick the pipe through and do up the zip, use the cable clips to keep it done up. That's all it needs really.
M**N
Fiddly but worth the effort
Fiddly but worth the effort to fit, if you have a side hinged window, which I do.
H**D
Excellent Thermal Seal, but the Adhesive Needs an Upgrade
The Bottom Line: If you are looking for an affordable way to boost your portable AC’s efficiency, this 400cm universal seal does the job. It effectively stops the "backflow" of hot air, making a noticeable difference in room temperature. However, be prepared to supplement the included adhesive if you plan to open and close your window frequently. The Pros: Performance & Fit Effective Cooling: Once installed, the difference is immediate. It creates a solid barrier that prevents hot exhaust and humidity from leaking back into the room. Universal Versatility: At 400cm, it’s long enough for most standard casement or tilt windows. The zip system is clever and accommodates almost any hose diameter without gaps. Energy Efficient: My AC unit doesn't have to work nearly as hard to maintain a cool temperature, which should help with the electric bill. The Cons: Durability & Versatility Weak Adhesive: This is the main drawback. The provided adhesive tape struggles with tension. If you live in a particularly humid climate or have a heavy hose, the "sticky" factor wears off quickly. Lack of Customisation: It’s a "one size fits most" design, which means if your window is significantly smaller than 400cm, you end up with excess fabric that can look a bit messy or "baggy" on the frame. Difficulty with Window Operation: Because the glue isn't incredibly strong, the tugging and pulling required to open or close the window often causes the seal to peel away from the frame. It’s best suited for a window you plan to leave shut for the summer. Expert Tip for Buyers: To make this product truly "permanent" for the season, I highly recommend buying a roll of heavy-duty industrial Velcro or double-sided mounting tape. The fabric seal itself is high quality; it’s just the included glue that lets it down. Replacing the stock tape makes the whole setup much more stable when you need to adjust the window.
G**N
Access removed for the bugs, vent success
The product works as described, although i would recommend sizing up a decent amount from the size of your window frame. My window was ~420cm and i sized to 500cm, if i got a 400, or anywhere closer such as 450, i do not think it would have worked as well. The velcro was relatively easy to set up, the cloth itself is a good thickness, but was finicky to get right, i had to leave ~30cm off of each of the tiny ends and leave them loose as they were not wide enough for the angle the window opened to, as why i suggest sizing up quite a bit. Overall, I am really well surprised by the quality and how well and effectively this product works. Great value for money.
B**.
Would recommend - be prepared with extra velcro
I have the worst and most useless type of all windows (tilt window with bottom side hinge, opens inwards). This seal does the job well. Material is durable and feels thick enough. Width is good enough to seal around your open window while your AC is working. Look is ok and fit for purpose, it’s hidden behind the curtain anyway. I used this product for a window with the longest side about 110cm long. Would have given a 5 star rating if the product had come with some extra soft-side velcro to be placed as needed for extra sealing. The product only comes with a lengthy roll of the rough-side velcro, while the soft velcro is readily sown onto the sealing bag. For this reason you may need an extra bit of velcro to tighten around the edges. Still a very good product I would recommend.
M**0
Does the job well and easy to use
Bought this summer as the window seal that came with my AC didn’t fit. Easy to apply, and the white velcro blends in nicely. Added a shoelace to tie the zippers as a precaution with my cat. Without this seal, the AC barely worked — after adding it, the room felt much cooler, so it clearly keeps the hot air out.
İ**N
Hemen monte edip kullandım tüm yaz rahattık
A**N
EL sistema como tal cumple con su función, es fácil de instalar con su doble cinta que la cortas y pegas segu. Los centímetros que necesites y lo que te permite ajustarlos al máximo.o y hacerlo mas hermético para que no entiendo el aire caliente del exterior, el cierre se puede mover y ajustar fácilmente. En resumen muy buen producto en sus características y función.
D**K
Wir sind zufrieden. Ließ sich gut anbringen und funktioniert ganz gut. Der Anschluß der Klima lässt sich gut mit den Reißverschluss fixieren
R**E
Ottimo si aggancia facilmente
S**H
Heel handig voor je airco
Trustpilot
2 weeks ago
2 weeks ago