---
product_id: 266818970
title: "HOOMEE 400CM Window Caulking Cloth for Mobile Air Conditioner and Tumble Dryer - Works with All Mobile Air Conditioning Units, Easy Installation"
brand: "hoomee"
price: "¥13373"
currency: JPY
in_stock: true
reviews_count: 5
category: "Hoomee"
url: https://www.desertcart.jp/products/266818970-hoomee-400cm-window-caulking-cloth-for-mobile-air-conditioner-tumble
store_origin: JP
region: Japan
---

# energy-saving seal 400 cm universal fit tool-free install HOOMEE 400CM Window Caulking Cloth for Mobile Air Conditioner and Tumble Dryer - Works with All Mobile Air Conditioning Units, Easy Installation

**Brand:** hoomee
**Price:** ¥13373
**Availability:** ✅ In Stock

## Summary

> ❄️ Keep your cool and your bills low — the ultimate AC sidekick!

## Quick Answers

- **What is this?** HOOMEE 400CM Window Caulking Cloth for Mobile Air Conditioner and Tumble Dryer - Works with All Mobile Air Conditioning Units, Easy Installation by hoomee
- **How much does it cost?** ¥13373 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/266818970-hoomee-400cm-window-caulking-cloth-for-mobile-air-conditioner-tumble)

## 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

- • **No Tools, No Hassle:** Quick, damage-free installation with included adhesive tape
- • **Eco-Friendly Energy Saver:** Reduces energy use & cuts your cooling bills
- • **Seal Out Heat, Seal In Cool:** Blocks warm air return for max AC efficiency
- • **Universal Fit for Every Window:** Fits all portable ACs & tumble dryers up to 400 cm perimeter
- • **Versatile Window Compatibility:** Works with inward/outward, left/right, top-hinged windows & skylights

## Overview

The HOOMEE 400CM Window Caulking Cloth is a polyester seal designed to fit all portable air conditioners and tumble dryers with window perimeters up to 400 cm. It prevents hot air from re-entering your room by sealing the gap around the AC hose, boosting cooling efficiency and reducing energy consumption. Easy to install without tools, it fits various window types including inward/outward opening and skylights, making it a versatile, eco-friendly solution for a cooler, more comfortable home.

## Description

Â Â Â Â Â Â Â Â Â Â Â Â Â ððEXCLUSIVELY SOLDÂ ON desertcartðð Â ENHANCE YOUR PORTABLE AIR CONDITIONERâS PERFORMANCE! The portable air conditioner casement window kit seals your window to stop hot air from coming in and cool air escaping, meaning that your portable air conditioner works as efficiently as possible. This perfect air exchange guard fits all normal window types and sizes, both opening outwards and inwards. ð How to choose the right size for your window/door? Watch our video tutorials!ð or read our dedicatedÂ blog postÂ here. â´ï¸Â INWARDÂ open window installation video:Â â´ï¸Top Hung Outward opening window installation video: HOOMEE Window Seal Kit for Portable Air Conditioner and Tumble Dryer is extremely easy to install and fits every portable air conditioner unit. Perfect for left/right/top hinged windows, both opening outwards and inwards For one or two hose air conditionsÂ Prevents the vented warm air from coming back into your room. A great solution that saves you heaps on your bills! Cool rooms quicker and more efficiently Easy to remove: once the weather turns chilly, just remove the seal and store it away for next summer! Install it in just seconds and enjoy a cool fresh environment. This window seal kitfor portable air conditioner works for: â InwardÂ opening casement windows (single or double, top/left/right hinged) â Outward opening casement windows (single or double, top/left/right hinged) â Top hinged windows (both inward or outward opening) â InwardÂ opening doors (left/right hinged) â Outward opening doors (left/right hinged) Â You may be also interested in: ð Guide:Â Â ð¡ ow to install on outward opening window - (left or right hinged) H ðVideo :Â ð¡ How to install on outward opening window - (left or right hinged)Â ð FAQ guide - with picturesð¡ Product Order details: Model No. : AL003 Size 300CM | EANÂ Â Â 0 708315566036 Size 400CM | EANÂ Â 0708315566043 Size 500CM | EANÂ Â 0708315566197 Size 560CM | EANÂ Â 0708315566050 Size 600CM | EANÂ Â 6973233210178

Review: Lätt att sätta upp och verkar vara hyfsad kvalité samt bra pris.
Review: Le HOOMEE 400CM Tissu De Calfeutrage pour Fenêtres pour Climatiseur Mobile a été un accessoire extrêmement utile pendant les deux étés. Il a grandement facilité l'installation de mon climatiseur mobile et a contribué à améliorer l'efficacité de celui-ci. Ce tissu de calfeutrage est incroyablement pratique. Il est facile à installer et s'adapte parfaitement à ma fenêtre, ce qui empêche les courants d'air chaud de pénétrer dans la pièce. Cela a considérablement amélioré la performance de mon climatiseur mobile en permettant de maintenir la température intérieure à un niveau confortable. De plus, le fait que le tissu soit suffisamment long (400 cm) offre une grande flexibilité pour différentes configurations de fenêtres, ce qui le rend adapté à de nombreuses situations. En résumé, le HOOMEE 400CM Tissu De Calfeutrage pour Fenêtres pour Climatiseur Mobile a été une solution efficace pour améliorer l'efficacité de mon climatiseur mobile tout en conservant un environnement intérieur confortable. Je le recommande vivement à tous ceux qui utilisent un climatiseur mobile pour lutter contre la chaleur estivale. Prenez soin et faite attention, il peut être fragile sur les fenêtres avec un coin 'coupant' ou pointus.

## Features

- NO MORE HOT AIR INCOMES – HOOMEE window seal keeps the warm air coming from the hose of your portable air conditioner away by locking the hose between the window frame and the window itself. Our window seal leaves out unwanted guests, rain and crates a “closed environment” that keeps your room cool for longer.
- INCREASE COOLING PERFORMANCE – Enjoy a cooler environment in summer thanks to HOOMEE! HOOMEE seals around your open window and then zips around the nozzle of your hose and blocks the return flow of warm air, so that your mobile air conditioning unit can be more efficient and cools your room in less time.
- REDUCE ENERGY CONSUMPTION - HOOMEE loves the Earth! This window seal contributes to reduce energy consumption and to lower carbon dioxide emissions, which is particularly high in summer due to the massive use of air conditioning. Preventing warm air circulating in your room, HOOMEE window seal helps you save money on electrical bills.
- EASY TO INSTALL – NO NEED FOR DRILLING HOLES . You don’t have to buy window kits, adapters for your hose or additional tools. All you need comes with your HOOMEE Window Seal! Simply apply the adhesive hook tape to the inside of your window frame and to the window itself. Attach the window seal to the hook tape. Then, open the zip on the window seal and place your air conditioner hose out of the window. At the end, close the zip tightly around the hose. Simple as it is.
- UNIVERSAL - Suitable for all portable air conditioners and tumble dryers regardless of manufacturer. Whether for windows that open to the left or windows that open to the right, bottom hung windows or skylights, HOOMEE Window Seal will do the job. Fits window with a maximum perimeter of 400 CM(157")

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BPZGJ3B |
| ASIN  | B07BPZGJ3B |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #95,982 in Kitchen ( See Top 100 in Kitchen ) #22 in Air Conditioner Stoppers |
| Color | Transparent/Green |
| Country of origin  | China |
| Customer Reviews | 4.1 4.1 out of 5 stars (12,295) |
| Customer reviews | 4.1 4.1 out of 5 stars (12,295) |
| Date First Available | 24 April 2018 |
| Date First Available  | 24 April 2018 |
| Included components | Installation Components |
| Installation Method | Window |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 403 g |
| Item model number | AL003 |
| Item model number  | AL003 |
| Manufacturer | HOOMEE |
| Manufacturer  | HOOMEE |
| Material | Polyester |
| Part number | AL003 |
| Pattern | Solid |
| Plug Profile | Inside Mount |
| Product Dimensions | 400 x 43 x 0.1 cm; 403.3 g |
| Product Dimensions  | 400 x 43 x 0.1 cm; 403.3 g |
| Shape | Rectangular |
| Size | 40W x 399H سم |
| Special Features | Tool Free Installation |
| Specific uses | Skylight, Window |

## Product Details

- **Brand:** HOOMEE
- **Colour:** Transparent/Green
- **Material:** Polyester
- **Opacity:** 1 inches
- **Product dimensions:** 3.99L x 0.4W Meters

## Images

![HOOMEE 400CM Window Caulking Cloth for Mobile Air Conditioner and Tumble Dryer - Works with All Mobile Air Conditioning Units, Easy Installation - Image 1](https://m.media-amazon.com/images/I/519VxsZxd6L.jpg)
![HOOMEE 400CM Window Caulking Cloth for Mobile Air Conditioner and Tumble Dryer - Works with All Mobile Air Conditioning Units, Easy Installation - Image 2](https://m.media-amazon.com/images/I/51dognCiLCL.jpg)
![HOOMEE 400CM Window Caulking Cloth for Mobile Air Conditioner and Tumble Dryer - Works with All Mobile Air Conditioning Units, Easy Installation - Image 3](https://m.media-amazon.com/images/I/61+b1ILCI3L.jpg)
![HOOMEE 400CM Window Caulking Cloth for Mobile Air Conditioner and Tumble Dryer - Works with All Mobile Air Conditioning Units, Easy Installation - Image 4](https://m.media-amazon.com/images/I/614IJG4EIcL.jpg)
![HOOMEE 400CM Window Caulking Cloth for Mobile Air Conditioner and Tumble Dryer - Works with All Mobile Air Conditioning Units, Easy Installation - Image 5](https://m.media-amazon.com/images/I/617Pj+N7qeL.jpg)

## Questions & Answers

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

**Q: how do i know if i need a 300cm or 400?**
A: 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.

**Q: Will it work with a skylight?**
A: Hello, it is open from the top, then it can work, if it is center pivot window, it doesn't Thank you.

**Q: Will this work on my windows that open outward?**
A: Yes, a window that opens outward is what I installed it on.  Follow the directions very carefully, they are complicated, but they work.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***Y on 23 May 2025*

Lätt att sätta upp och verkar vara hyfsad kvalité samt bra pris.

### ⭐⭐⭐⭐⭐ Review
*by P***6 on 24 September 2023*

Le HOOMEE 400CM Tissu De Calfeutrage pour Fenêtres pour Climatiseur Mobile a été un accessoire extrêmement utile pendant les deux étés. Il a grandement facilité l'installation de mon climatiseur mobile et a contribué à améliorer l'efficacité de celui-ci. Ce tissu de calfeutrage est incroyablement pratique. Il est facile à installer et s'adapte parfaitement à ma fenêtre, ce qui empêche les courants d'air chaud de pénétrer dans la pièce. Cela a considérablement amélioré la performance de mon climatiseur mobile en permettant de maintenir la température intérieure à un niveau confortable. De plus, le fait que le tissu soit suffisamment long (400 cm) offre une grande flexibilité pour différentes configurations de fenêtres, ce qui le rend adapté à de nombreuses situations. En résumé, le HOOMEE 400CM Tissu De Calfeutrage pour Fenêtres pour Climatiseur Mobile a été une solution efficace pour améliorer l'efficacité de mon climatiseur mobile tout en conservant un environnement intérieur confortable. Je le recommande vivement à tous ceux qui utilisent un climatiseur mobile pour lutter contre la chaleur estivale. Prenez soin et faite attention, il peut être fragile sur les fenêtres avec un coin 'coupant' ou pointus.

### ⭐⭐⭐⭐⭐ Review
*by A***M on 11 August 2022*

The installation took a bit of time, but with watching the YouYube video and one of the clips left in the reviews, I managed to get it right almost straightaway. The only tip I'd pass on would be to make sure you don't attach the corners to the velcro too tightly, cause it will make it harder to open and close the window. I only attached it to three sides of the window, as the fourth side is airtight so I didn't want any faff with extra material. My window opens both ways (kiep-kantel for Dutchies) and the seal works pretty well. I can only use it one way now, but that's fine. If I want to close the window I have to make sure the zipper doesn't get stuck at the top, but I can still close it which is all I need really. I tested it with my aircon and it's great, barely any outside air gets in.

## Frequently Bought Together

- 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
- XFasten Transparent Window Weather Sealing Tape, 2-Inch x 30 Yards (50.8mm x 27.43m), Clear Window Draft Isolation Sealing Film Tape, No Residue
- Shinco 8,000 BTU Portable Air Conditioner, AC Unit with Built-in Cool, Dehumidifier & Fan Modes for Room up to 200 sq.ft, Conditioner Remote Control, 24 Hour Timer, Installation Kit

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-24*