Does anyone know if there is any demonstration video to show me how to install the window seal? I have some challenges to install it.

For inward open window, you can refer to the installation video https://youtu.be/35aNfQWsjwg

how do i know if i need a 300cm or 400?

Hello, you can measure four open sides of the window and calculate the total length of them, if the total length is equal or less than 300cm, than you can select 300cm size, if equal or less than 400cm, than you can choose 400cm size. Important note, if you open the window, there is no gap where the window is attached to the frame, then you can just need to measure three open sides. Anything unclear please contact us via info@hoomee.com ,Thank you.

Will it work with a skylight?

Hello, it is open from the top, then it can work, if it is center pivot window, it doesn't Thank you.

Will this work on my windows that open outward?

Yes, a window that opens outward is what I installed it on. Follow the directions very carefully, they are complicated, but they work.

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HOOMEE 157”(400CM) Universal Window Seal for Mobile Air Conditioner and Tumble Dryer – Window Kit Works with Portable AC, Easy to Install - Air Exchange Guards with Zip and Adhesive Fastener

Product ID: 61524837

Details

Brand
HOOMEE
Color
White
Material
Fabric
Opacity
1 inches
Product Dimensions
157"L x 15.7"W

⚡Energy-saving seal

📏157-inch universal fit

🔒Secure zip closure

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Seal the heat out, keep the cool in — your window’s new best friend!

ZIP TIGHT SEAL - Innovative zipper closure locks in cool air and blocks hot air infiltration effortlessly.
BOOSTS AC EFFICIENCY - Prevents warm air return, accelerating cooling and slashing energy bills.
ECO FRIENDLY COOLING - Reduces energy consumption and carbon footprint during peak summer months.
TOOL FREE INSTALLATION - No drills or extra tools needed—adhesive hook tape makes setup a breeze.
UNIVERSAL 157 INCH FIT - Seamlessly adapts to any window up to 400cm perimeter for ultimate versatility.

The HOOMEE 157”(400CM) Universal Window Seal is a durable, easy-to-install fabric kit designed to fit all portable air conditioners and tumble dryers. Featuring a secure zip closure and adhesive hook tape, it effectively blocks hot air from entering through window gaps, enhancing cooling efficiency and reducing energy costs. Compatible with various window types and sizes, this eco-conscious accessory is a must-have for millennial professionals seeking smarter, greener home climate control.

Specifications

ASIN	B07BPZGJ3B
Additional Features	Easy to Assembly
Best Sellers Rank	#4,027 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #6 in Accessories (Home & Kitchen)
Brand Name	HOOMEE
Closure Type	Zipper
Color	White
Control Type	Manual
Customer Reviews	4.1 4.1 out of 5 stars (27,682)
Included Components	Adhesive hook tape, zip closure
Item Dimensions L x W	157"L x 15.7"W
Item Weight	0.4 Kilograms
Manufacturer	HOOMEE
Material Type	Fabric
Model Number	AL003
Mounting Type	Inside Mount
Number Of Panels	1
Number of Items	1
Opacity	1 inches
Operation Mode	Manual
Product Care Instructions	Spot Clean Only
Recommended Uses For Product	Indoor
Room Type	Bathroom
Shape	Rectangular
Size	157 Inch
Specific Uses For Product	Sealing windows, blocking hot air, air exchange
UPC	708315566043
Water Resistance Level	Not Water Resistant

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