--- product_id: 63736718 title: "300CM(118\") Window Seal, Cloth Accessory for Portable Air Conditioner" brand: "hoomee" price: "฿2624" currency: THB in_stock: true reviews_count: 5 category: "Hoomee" url: https://www.desertcart.co.th/products/63736718-300cm-118-window-seal-cloth-accessory-for-portable-air-conditioner store_origin: TH region: Thailand --- # 300cm (118") length for universal fit Secure zipper closure for airtight seal Durable polyester fabric for lasting use 300CM(118") Window Seal, Cloth Accessory for Portable Air Conditioner **Brand:** hoomee **Price:** ฿2624 **Availability:** ✅ In Stock ## Summary > ❄️ Seal the deal on cool comfort — don’t let your AC’s power escape! ## Quick Answers - **What is this?** 300CM(118") Window Seal, Cloth Accessory for Portable Air Conditioner by hoomee - **How much does it cost?** ฿2624 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/63736718-300cm-118-window-seal-cloth-accessory-for-portable-air-conditioner) ## Best For - hoomee enthusiasts ## Why This Product - Trusted hoomee brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sleek & Minimalist:** Clean white fabric blends seamlessly with any window frame or room decor - • **Compact & Lightweight:** Only 10.6 ounces, easy to store when not in use - • **Effortless Installation:** Adhesive tape and mounting hardware included for a no-fuss setup - • **Universal Compatibility:** Fits most portable AC hoses with a flexible zipper design - • **Maximized Cooling Efficiency:** Seals window gaps tightly to keep your AC’s cool air inside and hot air out ## Overview The HOOMEE 300cm (118") Window Seal is a durable polyester accessory designed to create an airtight barrier around your portable air conditioner hose. Featuring a secure zipper closure and easy adhesive installation, it optimizes cooling efficiency by preventing hot air infiltration. Lightweight and compatible with most window frames, it’s the perfect upgrade for any indoor space seeking enhanced climate control. ## Description Product description ENJOY A COMFORTABLE SPACE! HOOMEE Window Seal helps optimize your room's cooling. Made from durable materials, the window seal is built to last through many summers. For tips and information on how to chose the right window seal size for your window and correctly install the window seal, please watch our HO OMEE WINDOW SEAL INSTALLATION VIDEO. CHOOSING THE RIGHT SIZE - EASY INSTALLATION DURABLE MATERIALS BUILT TO LAST The zippers are made with strong materials. The loop tape is sewn tightly to the window seal WHICH IS THE RIGHT SIZE FOR MY WINDOW? Calculate the perimeter of your window Choose the window seal size that is longer and closer to your perimeter. E.g. a+b+c+d = 280 cm, the right size is 300 cm IDENFITY THE RIGHT SIDES OF THE WINDOW SEAL Lay the cloth window seal flat on a table Curved part is BLUE, the wider side of the window seal Straight part is GREEN, the narrow side RED Dot indicates the middle of the window seal Fit Your Window Seal Perfectly INSTALL THE WINDOW SEAL Start from matching the middle of the narrow side GREEN to the window handle (RED DOTS) Stick wide side BLUE to the window frame Stick narrow side GREEN to the window casement Close the window and make sure the window seal isn't clamped INSERT THE HOSE... Open the window slightly Pinch air hose by using the zipper Lock the hose using the cable tie provided ...OR TWO HOSES! There are two zippers provided for a second hoses, using the cable tie provided SUITABLE FOR MANY WINDOW TYPES! HOOMEE Window Seal is also suitable for top-hung roof top windows. HOOMEE Window Seal is also suitable for outward open casement windows. ALTERNATIVE WAY OF HOOK TAPE APPLICATION For certain window types and window corners can it be better to install the hook tape on the side of the window casement. This way the window can still be closed when the window seal is installed. IF YOUR WINDOW HAS A SPECIAL SHAPE AND THE WINDOW SHOULD NOT CLOSE EASILY WHEN THE WINDOW SEAL IS INSTALLED CAN YOU SIMPLY REMOVE THE WINDOW SEAL FROM THE HOOK TAPE OF THE WINDOW CASEMENT AND CLOSE THE WINDOW Another tip is to stick the hook tape on the outer edge of your window frame. This allows you to open and close your window effortlessly Review: Perfect to fit any hose with the zip mechanism, keeps hot air outside and allows AC to do its job! - I buy a new one of these each year, as they can get kind of gross after being exposed to outside for many months. The one I previously ordered changed their design to have a “universal” hose attachment, which of course did not fit the hose of my AC unit. I came back to desertcart to find one that has the zipper style opening and found this product. I don’t ever use the Velcro tape that comes with these, because I find the adhesive usually doesn’t hold up and seems to dissolve from heat-I buy the strong outdoors Velcro tape and it works perfectly with this! Setting it up was a pretty straightforward and easy process, and now that it’s been up a couple of months, I can rest assured that it is doing its job. It has been holding up wonderfully so far-the zipper stays taught around the hose exiting to the outside, and it is doing great at keeping the hot air outside instead of inside. I highly recommend measuring to ensure you get the right size, I measured and the fit was perfect. For these weird French windows, I absolutely recommend this product to set up your portable AC! They’re also quite easy to take down when summer is over, thought with the Velcro I have been using, I definitely have a lot of adhesive left behind that I will eventually need to address, but it’s totally worth it to be able to keep my apartment cool during the summer! Review: The only thing that worked for my casement window, even with two hoses! - I've been trying to install my portable AC into a casement window for a week now. I have an outward-opening casement which opens vertically from the bottom. Before this, I tried a bunch of stuff to seal the window kit provided with my AC. Even after getting a sheet of plexiglass cut for the window, my AC still was leaking too much heat back into the room, and the plastic from the window installation kit even warped itself. This was my last hope... and luckily it worked like a charm! I'm pretty sure I even accidentally ordered one slightly too large for my window, but it still fits and works fine after rolling up some excess material. Installation was super easy albeit a little tedious -- the instructions were kind of bad and the video instructions online were very poorly shot (there's an animated video and a real-life demo, both of which not super helpful), but it was pretty much just a matter of cutting two sets of 4 velcro strips - one set for the casement, and one set for the window frame. Then you velcro the "seal", but annoyingly you have to pick a specific side to velcro to the casement vs the window frame, and the only way to tell which side is to follow the edge all the way until it tapers off at the end. It would be really nice if they would color the velcro on one side in order to tell that it's the "wide" side vs the narrow side. I mentioned that I got one which is slightly too big for my window - I rolled up the extra material in the area where I wasn't able to finish getting a velcro seal, and taped it up with some painter's tape. They say to use elastic for this purpose, but didn't provide any. It's not perfectly sealed in that area, and I expect I might need to do a better job of rolling it up if there's another big heat wave in the area. Installing with two hoses is just as easy as installing with one -- it's just an extra zipper in the seal. I pointed them both downwards. After turning on the AC, there is very little heat being leaked back into the room, which is perfect! Like I mentioned, this is so far the only solution that has worked for my casement window. The material is high enough quality that I don't expect it to degrade significantly in the near future, the zippers move pretty easily around the seal, and overall I'm pretty happy with it. ## Features - Polyester - HOOMEE window seal to help fill the hose between the window frame and the window itself. - HOOMEE seals around your open window and zips around your hose nozzle, optimizing the efficiency of your air conditioning unit - Everything you need is included with HOOMEE Window Seal! Attach the adhesive tape to your window frame and the window, open the zip, and fit your air conditioner hose. Close the zip tightly around the hose - HOOMEE window seal - Product size 300cm , 118 inch. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07C986TBQ | | Additional Features | Easy to Assembly | | Best Sellers Rank | #42,066 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #76 in Accessories (Home & Kitchen) | | Brand | HOOMEE | | Brand Name | HOOMEE | | Color | White | | Customer Reviews | 4.1 out of 5 stars 27,596 Reviews | | Item Weight | 10.93 Ounces | | Manufacturer | HOOMEE | | Model Number | AL003 | | Room Type | Bedroom | | Special Feature | Easy to Assembly | | UPC | 708315566036 | ## Product Details - **Material:** Fabric - **Product Dimensions:** 118.11"L x 16.93"W - **Brand:** HOOMEE - **Color:** White - **Opacity:** 1 inches ## Images ![300CM(118") Window Seal, Cloth Accessory for Portable Air Conditioner - Image 1](https://m.media-amazon.com/images/I/614IJG4EIcL.jpg) ![300CM(118") Window Seal, Cloth Accessory for Portable Air Conditioner - Image 2](https://m.media-amazon.com/images/I/61TCgyIB2dL.jpg) ![300CM(118") Window Seal, Cloth Accessory for Portable Air Conditioner - Image 3](https://m.media-amazon.com/images/I/41UUjnc7gaL.jpg) ![300CM(118") Window Seal, Cloth Accessory for Portable Air Conditioner - Image 4](https://m.media-amazon.com/images/I/61t3-dxs4mL.jpg) ![300CM(118") Window Seal, Cloth Accessory for Portable Air Conditioner - Image 5](https://m.media-amazon.com/images/I/51dognCiLCL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect to fit any hose with the zip mechanism, keeps hot air outside and allows AC to do its job! *by K***S on June 29, 2025* I buy a new one of these each year, as they can get kind of gross after being exposed to outside for many months. The one I previously ordered changed their design to have a “universal” hose attachment, which of course did not fit the hose of my AC unit. I came back to Amazon to find one that has the zipper style opening and found this product. I don’t ever use the Velcro tape that comes with these, because I find the adhesive usually doesn’t hold up and seems to dissolve from heat-I buy the strong outdoors Velcro tape and it works perfectly with this! Setting it up was a pretty straightforward and easy process, and now that it’s been up a couple of months, I can rest assured that it is doing its job. It has been holding up wonderfully so far-the zipper stays taught around the hose exiting to the outside, and it is doing great at keeping the hot air outside instead of inside. I highly recommend measuring to ensure you get the right size, I measured and the fit was perfect. For these weird French windows, I absolutely recommend this product to set up your portable AC! They’re also quite easy to take down when summer is over, thought with the Velcro I have been using, I definitely have a lot of adhesive left behind that I will eventually need to address, but it’s totally worth it to be able to keep my apartment cool during the summer! ### ⭐⭐⭐⭐ Best for Side Opening Windows *by D***0 on August 5, 2025* This works really well for a side opening window. The velcro is easy to attach and there is enough of the product. It could do with a little better zipper as it can slide down. Otherwise great. ### ⭐⭐⭐⭐⭐ Great Product. Listen to positive comments, not negative ones. *by G***E on August 27, 2025* A lot of people write off this product. It's either an installation skill issue or they are just trying to be negative. This is my 3rd time buying this product, and I have never been disappointed. It's durable, sticks well, is easy to install, is lightweight, and looks great. You can literally fully open or close the window. It's withstood all summer, and I'll keep it for the next one. ## Frequently Bought Together - HOOMEE 300CM(118") Window Seal, Cloth Accessory for Portable Air Conditioner - HOOMEE 400CM (157") Universal Window Seal for Portable Air Conditioner and Tumble Dryer – Works with Mobile Air-Conditioning, Easy to Install - Air Exchange Guards with Zip and Adhesive Fastener - Portable Air Conditioner Hose - AC Hose with 5.9" Diameter, Anti-Clockwise Thread, Length up to 80" - Exhaust Hose for Portable Air Conditioner Vent Compatible with Delonghi & LG Air Conditioner Parts --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/63736718-300cm-118-window-seal-cloth-accessory-for-portable-air-conditioner](https://www.desertcart.co.th/products/63736718-300cm-118-window-seal-cloth-accessory-for-portable-air-conditioner) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-06-05*