---
product_id: 61524837
title: "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"
brand: "hoomee"
price: "R769"
currency: ZAR
in_stock: true
reviews_count: 10
category: "Hoomee"
url: https://www.desertcart.co.za/products/61524837-400cm-157-universal-window-seal-for-portable-air-conditioner-tumble
store_origin: ZA
region: South Africa
---

# energy-saving seal 400cm universal fit polyester durable fabric 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

**Brand:** hoomee
**Price:** R769
**Availability:** ✅ In Stock

## Summary

> ❄️ Lock out heat, lock in cool — your window’s new best friend!

## Quick Answers

- **What is this?** 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 by hoomee
- **How much does it cost?** R769 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/61524837-400cm-157-universal-window-seal-for-portable-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

- • **Universal 400cm Fit:** Seamlessly fits all window types and portable AC hoses up to 157 inches perimeter for ultimate versatility.
- • **Eco-Friendly Cooling:** Cut down on energy consumption and carbon footprint while keeping your space refreshingly cool.
- • **All-Season Protection:** Blocks rain, dust, and insects, creating a sealed environment that keeps your room comfortable year-round.
- • **Boost Your AC Efficiency:** Zippered seal locks out hot air, enhancing cooling speed and reducing energy bills.
- • **Effortless No-Drill Installation:** Adhesive hook tape and zipper system make setup a breeze—no tools or adapters needed.

## Overview

The HOOMEE 400CM Universal Window Seal is a polyester fabric barrier designed to fit windows up to 157 inches perimeter. It zips securely around portable AC and dryer hoses to prevent hot air from re-entering your room, boosting cooling efficiency and reducing energy costs. Easy to install with adhesive hook tape and no drilling required, it’s compatible with all window types and helps create a sealed, comfortable indoor environment while lowering your carbon footprint.

## Description

Buy 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: Accessories - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Perfect to fit any hose with the zip mechanism, keeps hot air outside and allows AC to do its job! - I buy a new one of these each year, as they can get kind of gross after being exposed to outside for many months. The one I previously ordered changed their design to have a “universal” hose attachment, which of course did not fit the hose of my AC unit. I came back to desertcart to find one that has the zipper style opening and found this product. I don’t ever use the Velcro tape that comes with these, because I find the adhesive usually doesn’t hold up and seems to dissolve from heat-I buy the strong outdoors Velcro tape and it works perfectly with this! Setting it up was a pretty straightforward and easy process, and now that it’s been up a couple of months, I can rest assured that it is doing its job. It has been holding up wonderfully so far-the zipper stays taught around the hose exiting to the outside, and it is doing great at keeping the hot air outside instead of inside. I highly recommend measuring to ensure you get the right size, I measured and the fit was perfect. For these weird French windows, I absolutely recommend this product to set up your portable AC! They’re also quite easy to take down when summer is over, thought with the Velcro I have been using, I definitely have a lot of adhesive left behind that I will eventually need to address, but it’s totally worth it to be able to keep my apartment cool during the summer!
Review: Best for Side Opening Windows - This works really well for a side opening window. The velcro is easy to attach and there is enough of the product. It could do with a little better zipper as it can slide down. Otherwise great.

## Features

- Polyester
- 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 |
| Batteries required | No |
| Best Sellers Rank | #244,794 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #276 in Accessories (Home & Kitchen) |
| Brand | HOOMEE |
| Closure Type | Zipper |
| Color | White |
| Control Type | Manual |
| Customer Reviews | 4.0 4.0 out of 5 stars (27,345) |
| Fabric Type | Polyester |
| Is Discontinued By Manufacturer | No |
| Item Weight | 14.2 ounces |
| Item model number | AL003 |
| Manufacturer | HOOMEE |
| Material | Fabric |
| Mounting Type | Inside Mount |
| Number Of Panels | 1 |
| Number of Items | 1 |
| Opacity | 1 inches |
| Operation Mode | Manual |
| Pattern | Solid |
| Product Care Instructions | Spot Clean Only |
| Product Dimensions | 157"L x 15.7"W |
| Recommended Uses For Product | Indoor |
| Room Type | Bathroom |
| Shape | Rectangular |
| Size | 15.7"W x 157"H |
| Special Feature | Easy to Assembly |
| UPC | 708315566043 |
| Water Resistance Level | Not Water Resistant |

## Product Details

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

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/614IJG4EIcL.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

### ⭐⭐⭐⭐⭐ Perfect to fit any hose with the zip mechanism, keeps hot air outside and allows AC to do its job!
*by K***S on June 29, 2025*

I buy a new one of these each year, as they can get kind of gross after being exposed to outside for many months. The one I previously ordered changed their design to have a “universal” hose attachment, which of course did not fit the hose of my AC unit. I came back to Amazon to find one that has the zipper style opening and found this product. I don’t ever use the Velcro tape that comes with these, because I find the adhesive usually doesn’t hold up and seems to dissolve from heat-I buy the strong outdoors Velcro tape and it works perfectly with this! Setting it up was a pretty straightforward and easy process, and now that it’s been up a couple of months, I can rest assured that it is doing its job. It has been holding up wonderfully so far-the zipper stays taught around the hose exiting to the outside, and it is doing great at keeping the hot air outside instead of inside. I highly recommend measuring to ensure you get the right size, I measured and the fit was perfect. For these weird French windows, I absolutely recommend this product to set up your portable AC! They’re also quite easy to take down when summer is over, thought with the Velcro I have been using, I definitely have a lot of adhesive left behind that I will eventually need to address, but it’s totally worth it to be able to keep my apartment cool during the summer!

### ⭐⭐⭐⭐ Best for Side Opening Windows
*by D***0 on August 5, 2025*

This works really well for a side opening window. The velcro is easy to attach and there is enough of the product. It could do with a little better zipper as it can slide down. Otherwise great.

### ⭐⭐⭐⭐⭐ The only thing that worked for my casement window, even with two hoses!
*by S***R on July 2, 2021*

I've 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! I'm 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 (there's 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 it's 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 wasn't able to finish getting a velcro seal, and taped it up with some painter's tape. They say to use elastic for this purpose, but didn't provide any. It's not perfectly sealed in that area, and I expect I might need to do a better job of rolling it up if there's another big heat wave in the area. Installing with two hoses is just as easy as installing with one -- it's 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 don't expect it to degrade significantly in the near future, the zippers move pretty easily around the seal, and overall I'm pretty happy with it.

## 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 South Africa*
*Store origin: ZA*
*Last updated: 2026-02-20*