HOOMEE Air Lock for Portable Air Conditioner,Window Seal for Mobile Air Conditioning. Max Size 14x60 Inch

In my apartment the windows open outward like a book, and the mesh screen is on the inside. You gotta do what you gotta do. Without this product, the hot air kept blowing back in so that the portable AC wasn't as effective as it should be. I bought two of these and placed them side by side. I velcroed the border of the window, and I also used extra velcro to hold the two fabrics together down the middle of the window. I put the exhaust through one of the zippers and everything else is velcroed tight. I can see and feel the temp going down. Must have it if you have my type of windows and need to use a portable AC. Just don't forget to open the window every time you use the AC.

I’m very pleased with this seal. It was so easy for me to install. Thanks for the warranty! I think it will last for quite a while although it faces the south and will get dry from the sun eventually. If it fails you promise to replace so that’s what I like too!! Increase .ml on thickness of material and product would last substantially longer

I don't recommend this at all. it provides no insulation and after about a month of hot weather, the glue on the back of Velcro dried out and the Velcro strips fell off leaving a hard melted on residue.

It works and the Velcro is very durable. The system managed to seal up an 8” exhaust vent 97% of the way. Small areas of leakage even with cinched down zip ties but from what I could tell rain would have some trouble getting in. I used it for a crypto mining exhaust and the material could handle the heat / weight of the exhaust vent. However the fabric is pretty thin and transparent. A lot of light, and temperature can pass through pretty easily. I think it is a perfect solution in a pinch but long term I would maybe look into a more permanent product

Installation was very easy I had it installed in about 15 mintues. I was kind of apprehensive at first but once it was completely installed I was very impressed, material is very light weight but durable. I am not ready for the up in coming hot weather.

This air conditioner works wonderfully in our apartment. Very easy to install and operate. Really great buy I would recommend highly.

I have been searching a long time for a solution. And it takes 10 min. Instead of 2 hrs trying to position original pieces.

Giving this four stars because it does the job and I haven't been able to find an alternative. That being said, I need to use a lot of duct tape to make sure it's completely air-tight. There's also no chance of re-using it from year to year, so be prepared to order a new one the next time you need to bust out the AC. My AC has two large tubes to fit in it, and while it works they are heavy and like to try to pull this thing off the velcro, so if you have a similar setup I would suggest securing the top of it with some extra duct tape. If you have a single tube AC unit or one that has smaller tubes, it probably works much better.

Very bad I did not receive my refund also Product itself missing

I got two of them and wouldn't regret the decision. Super easy installation. Just make sure and measure the window size appropriately and place an order accordingly. The width is 14" max. Enjoy the cool summer with this product!

Works well. Blocks the heat coming back in.

Little more price compared to products size and quality

Set up is easy but be prepared to measure and add tolerance, the cover is not cut with consideration to corners so you will need to fold it in certain places and just deal with some small gaps, this certainly isn't an airtight cover by far. Also, the zipper area could have used some extra engineering for function, such as including a universal-sized vent chute with adjustable diameter like grow tents have. Instead you're left to squeeze your (MAXIMUM 4") duct through 2 zippers that you have to close to the best of your abilities around the duct, and then fasten with zip-ties to only keep it moderately closed.