400CM (157)Universal Window Seal for Portable Air Conditioner And Tumble Dryer – Works with Every Mobile Air-Conditioning, Easy to Install - Air Exchange Guards With Zip and Adhesive Fastener

What can I say? It works! The installation went exactly like the video for me. Just attach the Velcro to your window and then stick on the HooMee. You need to read the instructions a little carefully when laying out the fabric to make sure youre attaching the right side to the right part of your window, but its fine. I cant speak really to how efficiently it insulates from the outside hot air, but it definitely keeps the exhaust outside so that my apartment doesnt heat up from AC exhaust while the AC is running. Its relatively easy to unstick from the Velcro when I just want to open my window. Or I can unzip it and open my window with it hanging off the window.

Allows me to use an air conditioner in an unusual window and still close the window when not in use.

Ive 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! Im 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 (theres 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 its 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 wasnt able to finish getting a velcro seal, and taped it up with some painters tape. They say to use elastic for this purpose, but didnt provide any. Its not perfectly sealed in that area, and I expect I might need to do a better job of rolling it up if theres another big heat wave in the area. Installing with two hoses is just as easy as installing with one -- its 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 dont expect it to degrade significantly in the near future, the zippers move pretty easily around the seal, and overall Im pretty happy with it.

The air conditioning in my upstairs bedroom has not worked for years. Unfortunately there is no window in the room only French doors so I could not get a window air-conditioner. I am not crafty or handy in any way so rigging something with the French doors was out and I did not want to spend thousands on a ductless air-conditioner. I stumbled on this product and thought I should give this a try. It was easy enough to install. I had to get some extra velcro bc I put it in the wrong place on the door frame but once I figured it out it was simple and only took like 30 minutes to get the whole think up. The hose fit in the zipper hole and I used the zip ties to keep it in place and used some ductape to really seal it all the way. All in all this product was a cheap way to make an otherwise very uncomfortable room livable. I would definitely recommend getting this product. I also watched the YouTube videos in the question section and they were very helpful.

We have windows that crank outward with a screen inside, so getting our portable a/cs to be ventable had been a pain in the neck. These, while a tad challenging to ensure we understood the instructions at first, went up easily and work very well. Note that the material means no sound barriers to the outside, so if you live in a noisy place, youll hear everything as though the windows are open (which they are!), but its well worth it.

Im happy with buying it. The window in one room of our house can not install window AC. We think to change the window. But this is too expensive.I came to my friends house, and I saw she bought a portable air conditioner. It looked very nice and I made up my mind to buy one too. It can good fit our window. Our new portable AC came quickly, but to my disappointment, the panel kits cannot work well for our window. Hot air would come back inside the room, making the bedroom uncomfortably hot and humid. Personally speaking, I dont feel too much the temperature dropped. I bought this window seal. It seems to be high quality but helped immensely, it keeps the windows completely closed throughout my bedroom. I can sleep so much better from then on. Its as our expectations in mind and we have been totally satisfied. By the way, if you are an extreme environmentalist like me, you would find it is a good choice to save the energy. Very creative product.

Worked great with my AC, which I wouldnt have been able to use effectively without it.

It took me quite a while to figure out how to install this in my outward opening crank window. But finally I did. The directions werent all that clear - maybe some actual pictures of how it should go would help. Even the video didnt have pictures, just a line showing where to put the velcro, and nothing for the fabric part. The fabric is a bit too big for my window so I have to deal with that somehow but for now, its up, the AC hose is out and it works fine. Im a bit concerned how it will hold up to wind blowing towards it, as most of the wind here comes from the direction that will stress it. But so far, so good. And also fingers crossed the glue on the velcro doesnt damage the paint when we move (were renting). But it was that or suffer with heat and humidity. The only other option in places like this would be a specially constructed thing, so Im glad I found this and hope it stays on and doesnt rip in the wind.

The velcro will leave a residue that is very difficult to remove. The screen does not keep temperature well and it gets very bright/hot when the sun hits it.

I think this is a very useful and innovative product. My husband was confused on how to install it at first but the videos were super helpful for him and he installed successfully. It works great to keep the heat out while using an odd shaped window for an air conditioner