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

📏157-inch universal fit

🔒Secure zip closure

🛠️Tool-free adhesive install

€ 52.92

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Description

❄️ Seal the heat out, keep your cool in style!

ENERGY COST SAVER - Reduces energy consumption and lowers your summer electric bills
DURABLE SECURE SEAL - Heavy-duty polyester fabric with zip closure keeps exhaust hose firmly in place
UNIVERSAL 157 INCH FIT - Seals windows up to 400 cm perimeter for all portable ACs & dryers
EFFORTLESS INSTALLATION - No drilling or extra tools—adhesive hook tape and zip closure included
MAXIMIZED COOLING EFFICIENCY - Blocks hot air return flow to boost AC performance and speed cooling

The HOOMEE 157” Universal Window Seal is a durable, easy-to-install fabric kit designed to fit windows up to 400 cm perimeter. It creates a tight seal around portable AC and dryer exhaust hoses using adhesive hook tape and a secure zip closure, effectively blocking hot air from entering and improving cooling efficiency. This tool-free solution helps reduce energy consumption and is compatible with various window types, making it a smart upgrade for any modern home seeking comfort and savings.

Specifications

ASIN	B07BPZGJ3B
Additional Features	Easy to Assembly
Best Sellers Rank	#159,841 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #260 in Accessories (Home & Kitchen)
Brand	HOOMEE
Brand Name	HOOMEE
Color	White
Customer Reviews	4.1 out of 5 stars 12,919 Reviews
Included Components	Adhesive hook tape, zip closure
Item Weight	0.4 kg
Manufacturer	HOOMEE
Model Number	AL003
Room Type	Bathroom
Special Feature	Easy to Assembly
UPC	708315566043

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€ 52.92

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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