---
product_id: 594528791
title: "XIIW 4'' 100mm Bathroom Extractor Fan with Humidity Sensor and Timer Overrun Delay, Silent Bathroom Fan with Backflow Flap, 95 m³/h, 12 Watt / 34 dB for Bathroom, Toilet, Kitchen - White"
brand: "xiiw"
price: "HK$890"
currency: HKD
in_stock: true
reviews_count: 13
category: "Xiiw"
url: https://www.desertcart.hk/products/594528791-xiiw-4-100mm-bathroom-extractor-fan-with-humidity-sensor-timer
store_origin: HK
region: Hong Kong
---

# 95 m³/h airflow - powerful ventilation Ultra-quiet <34 dB - peaceful operation Timer overrun delay - customizable runtime XIIW 4'' 100mm Bathroom Extractor Fan with Humidity Sensor and Timer Overrun Delay, Silent Bathroom Fan with Backflow Flap, 95 m³/h, 12 Watt / 34 dB for Bathroom, Toilet, Kitchen - White

**Brand:** xiiw
**Price:** HK$890
**Availability:** ✅ In Stock

## Summary

> 💨 Breathe smarter, live fresher — the silent guardian of your indoor air!

## Quick Answers

- **What is this?** XIIW 4'' 100mm Bathroom Extractor Fan with Humidity Sensor and Timer Overrun Delay, Silent Bathroom Fan with Backflow Flap, 95 m³/h, 12 Watt / 34 dB for Bathroom, Toilet, Kitchen - White by xiiw
- **How much does it cost?** HK$890 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/594528791-xiiw-4-100mm-bathroom-extractor-fan-with-humidity-sensor-timer)

## Best For

- xiiw enthusiasts

## Why This Product

- Trusted xiiw brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Backflow Protection:** Built-in flap stops cold drafts and pesky insects, keeping your space cozy and clean.
- • **Smart Humidity Sensor:** Automatically activates when moisture hits your set threshold, banishing mold and odors before they start.
- • **Sleek, Minimalist Design:** Clean white finish blends seamlessly with modern interiors, elevating your space’s aesthetic.
- • **Customizable Timer Function:** Set your fan to run from 1 to 30 minutes post-use, ensuring fresh air lingers just long enough.
- • **Whisper-Quiet Brushless Motor:** Enjoy powerful extraction without the noise—perfect for your serene bathroom or office.

## Overview

The XIIW 4'' 100mm Bathroom Extractor Fan combines a high-efficiency 95 m³/h airflow with an intelligent humidity sensor and adjustable timer, delivering automatic, silent ventilation under 34 dB. Its backflow flap prevents drafts and insects, while the brushless motor ensures long-lasting, quiet operation. Designed for easy wall mounting and compatible with various room sizes, this sleek white fan is the ultimate upgrade for maintaining a fresh, healthy bathroom, kitchen, or office environment.

## Description

Product Description Open the lid Single switch Double switch TH - with humidity sensor and lag function Switch-on humidity can be adjusted from approx. 60% to 90% relative humidity, delay time adjustable from approx. 0 minutes to approx. 30 minutes. The humidity sensor detects moisture in the range between 60% and 90%. The system is also equipped with a timer. The way the device works depends on how you connect to the network. In the first case of connection, the fan starts automatically when the humidity level exceeds a set value. On the other hand, it switches off when the humidity level falls below the set value, as well as after the expiry of a time determined at the potentiometer, calculated from the moment of reduction of the degree of moisture. In the case of connection two, in addition to the automatic commissioning, there is also the possibility of manual commissioning of the fan using the light switch or a separate switch for the fan. After turning off the light or switch, the device switches off as in the first case after the expiration of a time set on the potentiometer. XIIW Bathroom fan w/ Timer w/Humidity Sensor & Timer

Review: Silent extractor fan - Brought this product for the shed, works really well and arrived in a timely manner.
Review: It's quite and easy to install. - It ia quite and works well. Easy to install and looks good.

## Features

- With humidity sensor: when indoor humidity reaches the threshold value you set, the bathroom fan works automatically until the humidity is below the specified threshold. Perfectly solve the problem of unpleasant odour and mould in the room
- Timing function: bathroom fan has a timer function that you can set according to your wishes (1 minute - 30 minutes), easy installation and operation, extremely cost-effective maintenance.
- Backflow conductor: the fan has a backflow protection to prevent insects from flying into the house, backflow flap is prevented from cold or damp air from the outside by the switched off, for wall mounting.
- Quiet operation: the exhaust fan uses a bearing motor, which has the characteristics of quiet operation (<34 dB) and a long service life. White bathroom fan compatible with a variety of decoration styles, provides a comfortable and healthy environment.
- This bathroom fan does not need to be connected to the grounding cable, the installation instructions can be found on the detail page. OPTIMAL ROOM SIZES: WC: 3-4m², Bathroom: 3-9m², Bedroom: 7-13m², Kitchen: 3-7m², Office: 5-13m².
- ❤️At low room humidity, the product starts very frequently and with a long delay time, it works continuously. Please set the humidity setting to 3 lamps (80%) and the delay time to 5 minutes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BXWSBSMZ |
| Air Flow Capacity | 95 Cubic Metres Per Hour |
| Best Sellers Rank | 13,230 in DIY & Tools ( See Top 100 in DIY & Tools ) 18 in Bathroom Fans |
| Blade Length | 100 Millimetres |
| Blade Material | Plastic |
| Brand | XIIW |
| Brand Name | XIIW |
| Collection Name | Air Extractors |
| Colour | White |
| Connector Type | Schuko |
| Control Method | Touch |
| Controller Type | Manual Control |
| Country of Origin | China |
| Customer Reviews | 4.1 out of 5 stars 156 Reviews |
| Electric Fan Design | Exhaust Fan |
| Electric fan design | Exhaust Fan |
| Finish Type | Painted |
| Form Factor | Wall-mounted bathroom extractor fan |
| Included Components | Cord |
| Indoor Outdoor Usage | Indoor |
| Installation Type | wall_mounted |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 15D x 16W x 13H centimetres |
| Item Type Name | Humidity sensor and lag function |
| Item Weight | 0.56 Kilograms |
| Main Power Connector Type | Schuko |
| Manufacturer | XIIW |
| Material | Plastic |
| Model Name | LFWW-13R |
| Model Number | LFWW-09QH |
| Motor Type | Bürstless Motor |
| Mounting Type | Wall Mount |
| Number of Power Levels | 1 |
| Part Number | Feuchtesensor und Nachlauffunktion |
| Power Source | Corded Electric |
| Power source | Corded Electric |
| Product dimensions | 15D x 16W x 13H centimetres |
| Recommended Uses For Product | Ventilating |
| Reusability | Reusable |
| Room Type | Bathroom, Bedroom, Kitchen |
| Size | 100mm - White - Humidity Sensor & Timer Overrun |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Features | Humidity sensor and timer |
| Speed | 3 RPM |
| Standby Power Shutoff | 7.92 m³/h per watt |
| Style | White |
| Switch Type | Toggle |
| Theme | Timer e umidità |
| Unit Count | 1.0 count |
| Wattage | 12 watts |

## Product Details

- **Brand:** XIIW
- **Colour:** White
- **Electric fan design:** Exhaust Fan
- **Mounting type:** Wall Mount
- **Power source:** Corded Electric
- **Product dimensions:** 15D x 16W x 13H centimetres
- **Recommended uses for product:** Ventilating
- **Room type:** Bathroom, Bedroom, Kitchen
- **Special feature:** Humidity sensor and timer
- **Style:** White

## Images

![XIIW 4'' 100mm Bathroom Extractor Fan with Humidity Sensor and Timer Overrun Delay, Silent Bathroom Fan with Backflow Flap, 95 m³/h, 12 Watt / 34 dB for Bathroom, Toilet, Kitchen - White - Image 1](https://m.media-amazon.com/images/I/410MnxezyGL.jpg)
![XIIW 4'' 100mm Bathroom Extractor Fan with Humidity Sensor and Timer Overrun Delay, Silent Bathroom Fan with Backflow Flap, 95 m³/h, 12 Watt / 34 dB for Bathroom, Toilet, Kitchen - White - Image 2](https://m.media-amazon.com/images/I/61gMSOxjOUL.jpg)
![XIIW 4'' 100mm Bathroom Extractor Fan with Humidity Sensor and Timer Overrun Delay, Silent Bathroom Fan with Backflow Flap, 95 m³/h, 12 Watt / 34 dB for Bathroom, Toilet, Kitchen - White - Image 3](https://m.media-amazon.com/images/I/51lP858mMxL.jpg)
![XIIW 4'' 100mm Bathroom Extractor Fan with Humidity Sensor and Timer Overrun Delay, Silent Bathroom Fan with Backflow Flap, 95 m³/h, 12 Watt / 34 dB for Bathroom, Toilet, Kitchen - White - Image 4](https://m.media-amazon.com/images/I/41lzMFhkVdL.jpg)
![XIIW 4'' 100mm Bathroom Extractor Fan with Humidity Sensor and Timer Overrun Delay, Silent Bathroom Fan with Backflow Flap, 95 m³/h, 12 Watt / 34 dB for Bathroom, Toilet, Kitchen - White - Image 5](https://m.media-amazon.com/images/I/61azAoExWHL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Silent extractor fan
*by D***Y on 29 May 2026*

Brought this product for the shed, works really well and arrived in a timely manner.

### ⭐⭐⭐⭐⭐ It's quite and easy to install.
*by Z***S on 14 March 2026*

It ia quite and works well. Easy to install and looks good.

### ⭐⭐⭐⭐ Good product so far.....
*by N***R on 23 April 2025*

So far so good......as the review from a previous purchaser stated the fan is produced for the German market and like everything these days is made in China. It seems well designed and made although I felt the terminal blocks could have been slightly bigger. The layout was slightly different from the pictures shown in the Amazon product details, but fairly easy to sort out and the description from our previous friendly reviewer was very useful for the set up and adjustment. The noise levels are about the same as all the other fans I've ever had or heard.... not great but not bad! Based on the current use I would recommend this product, but the proof is in the pudding and I won't really know how good it is for another couple of years at least? So at the end of the day, you pays your money and takes your choice!

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- XIIW 4'' 100mm Bathroom Extractor Fan with Humidity Sensor and Timer Overrun Delay, Silent Bathroom Fan with Backflow Flap, 95 m³/h, 12 Watt / 34 dB for Bathroom, Toilet, Kitchen - White
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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-06-20*