# Kair KMF125T 125 mm Inline Extractor Fan with Timer

The Kair KMF125T is a 125 mm inline extractor fan with a timer and two speed settings. Its listed airflow capacity is 280 Cubic Metres Per Hour, and it requires hardwiring, so installation needs to suit a fixed electrical connection and compatible ducting.

- [Original product page](https://bargainpostbox.co.uk/product/kair-kmf125t-125mm-inline-extractor-fan-timer)
- [View offer](https://bargainpostbox.co.uk/visit/kair-kmf125t-125mm-inline-extractor-fan-timer)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Kair
- Model: KMF
- Category: Home & Kitchen > Heating, Cooling & Air Quality > Fans
- Price: 56.99 GBP
- Previous price: 74.99 GBP
- Discount: 24%
- Price checked: 2026-11-14T09:53:29.459Z
- Rating: 4.2 / 5
- Reviews: 36

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Two-speed operation lets the installation use a low or high speed setting.
- The listing gives airflow up to 280 m³/h and noise levels from 28 decibels. These are manufacturer claims, not independent measurements.
- The supplied feature details specify compatible 125 mm / 5 inch plastic ducting and a maximum 5 m duct run without bends.
- A timer version is listed, alongside hardwired power.

## Pros

- Two speed settings provide a choice between lower and higher airflow.
- The stated duct compatibility and maximum run give useful planning details for a straightforward duct route.
- The stated two-year warranty provides a defined warranty term.

## Cons

- Hardwiring means this is not a plug-in fan and electrical installation must be planned accordingly.

## Specifications

### Identity and design
- Brand: Kair
- Model: KMF
- Fan design: Exhaust Fan
- Colour: White
- Material: Plastic
- Finish: Painted
- Style: Industrial
### Airflow and operation
- Airflow capacity: 280 Cubic Metres Per Hour
- Speed settings: 2
- Noise level: 28 Decibels
- Wattage: 23 watts
- Timer control: Timer Control
- Control method listed: Touch
- Recommended uses: Exhausting, Ventilating
- Indoor or outdoor use: Indoor
### Power and installation
- Power configuration: Hardwiring required
- Mounting types listed: Ceiling Mount, Floor Mount, Wall Mount
- Weight: 1.45 Kilograms
- Ducting compatibility: Compatible with 125mm / 5 inch plastic ducting
- Maximum duct run: 5m without bends
### Warranty
- Product warranty: 2 year warranty.

## Before you buy

- The listing describes a maximum duct run of 5 m without bends. Confirm the duct layout and installation requirements before choosing a position. Its product information also says not to expose it directly to heavy water jets in wet areas.

## In the box

- Inline fan unit (Included)
- Mounting screws (Included)
- Screw plugs (Included)
- Installation instructions (Included)
- Data sheet (Included)

## A good fit for

- Bathroom or other indoor ventilation projects using compatible 125 mm plastic ducting.
- Buyers who want a timer version and a choice of two speed settings.
- Installations with a duct route no longer than the stated 5 m without bends and provision for hardwiring.

## Less suited to

- Buyers needing a plug-in or cordless fan.
- Duct installations that exceed the stated 5 m run without bends.

## Customer feedback

Customer feedback highlights quiet operation and straightforward installation, while reports about reliability are mixed, including accounts of both satisfactory operation and the fan stopping after two weeks. The stated 28-decibel noise level and hardwired design are relevant context, but do not establish those experiences for every installation. The overall rating distribution leans positive while including a smaller one-star share, so it does not resolve the reliability concern.
- Positive themes: Customers describe the fan as quiet.
- Positive themes: Customers describe installation as easy.
- Mixed feedback: Reliability feedback is mixed, with reports of both successful operation and the fan stopping after two weeks.

## Frequently asked questions

### Does this Kair fan need hardwiring?
Yes. The listing specifies hardwiring, so it is not a plug-in fan.
### What ducting does it fit?
The listed feature says it is compatible with 125 mm / 5 inch plastic ducting.
### How long can the duct run be?
The stated maximum is 5 m without bends. The listing does not give a maximum for routes with bends.
### Can it be installed in a bathroom?
The listing names bathrooms as a use and describes installation in wet areas, but says it should not be directly exposed to heavy water jets.

## Alternative options

- [Devola 100mm Inline Mixed Flow Extractor Fan with Timer, 4 Inch Bathroom Fan, For Kitchen, Bathroom and Loft, Made in Britain \(Timer Model\) - DVILF100T](https://bargainpostbox.co.uk/visit/kair-kmf125t-125mm-inline-extractor-fan-timer)
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- [Swiftair ST100S Inline Extractor Fan 100mm with UK Plug \| 110 m³/h Airflow, 35 dBA Noise Level, IP X4 Motor Protection, 40,000hr Ball-Bearings, Overheating Protection](https://bargainpostbox.co.uk/visit/kair-kmf125t-125mm-inline-extractor-fan-timer)
- [Devola 100mm Inline Mixed Flow Extractor Fan, 4 Inch Bathroom Fan, For Kitchen, Bathroom and Loft, Made in Britain \(Standard Model\) - DVILF100](https://bargainpostbox.co.uk/visit/kair-kmf125t-125mm-inline-extractor-fan-timer)
- [FanGoFast Inline Extractor Fan 100mm/4 inch with Adjustable 2-Speed Controller and UK Plug, Mixed Flow Bathroom Ventilation Fan for Bathroom, Kitchen, Office, Grow Rooms \(Black, 100mm\)](https://bargainpostbox.co.uk/visit/kair-kmf125t-125mm-inline-extractor-fan-timer)
- [AirTech-UK Elite Inline Extractor Fan 100mm / 4 inches - Dual Speed Bathroom Extractor Fan with Timer - Silent and High Power Inline Fan for Bathroom - Ceiling, Toilet, Loft installation](https://bargainpostbox.co.uk/visit/kair-kmf125t-125mm-inline-extractor-fan-timer)
- [Blauberg Turbo EC 200mm Energy Efficient Mixed Flow In-Line Fan \| Lower Energy Consumption With Higher Performance For Powerful, Efficient Ventilation](https://bargainpostbox.co.uk/visit/kair-kmf125t-125mm-inline-extractor-fan-timer)
- [FanGoFast Inline Extractor Fan 125mm/5 inch with Adjustable Speed Controller and UK Plug, 285m³/h Ventilation Fan for Bathroom, Office, Grow Rooms \(Black, 125mm\)](https://bargainpostbox.co.uk/visit/kair-kmf125t-125mm-inline-extractor-fan-timer)

## Add-ons

- [Hon&Guan 125 mm Adjustable Air Vent for Interior Walls Ceiling, No drilling \| 5 Inch Air Duct Diffuser, Closeable, Round, Circular, Plastic, White, Indoor Ventilation Cover for Caravans, HVAC, Bathroom](https://bargainpostbox.co.uk/visit/kair-kmf125t-125mm-inline-extractor-fan-timer)
- [Kair 125mm x 3m PVC Flexible Ducting Hose \| For dryer vents and cooker hoods and extractor fans, Flexible ducting offers an easy solution for running ducting](https://bargainpostbox.co.uk/visit/kair-kmf125t-125mm-inline-extractor-fan-timer)

## Images

![Kair KMF125T 125 mm Inline Extractor Fan with Timer — 1](https://bargainpostbox.co.uk/i/tBlABnP0UucksJhPog_8gssLt1k0yNgeSxxFRzsUlziUJ3JZbuiU7UZAAWBNShSkix6RWWK9s4qOAzR9Bft347O9uxQE-VZv2X0eM8GMGDZiDgI3b8iddsuO.jpg)

![Kair KMF125T 125 mm Inline Extractor Fan with Timer — 2](https://bargainpostbox.co.uk/i/JFi6NLmkXv1yTNsX4b3HLInCAU7P4lonslH5ejOeZMl7R6eJESVK6EMuazOeBMiOl_HzvkZV6US21zR94EqQQjrf0viaxWB5QFYGuvEhH_YAIy1K-PNQDxFa.jpg)

![Kair KMF125T 125 mm Inline Extractor Fan with Timer — 3](https://bargainpostbox.co.uk/i/_Pa8ZE3UUU8zViHxHDW1vSbiLlKe_FaSqguzP_4FR528cSirNk9wRg0SC9xB0qKJY1_9wHSQlYWJyR28lUQSontorninRsA7j-U2UIa3aPdMNH7Mt3QdFRae.jpg)

![Kair KMF125T 125 mm Inline Extractor Fan with Timer — 4](https://bargainpostbox.co.uk/i/C24V1j7XhFni71knwkMQfr5L5G-cdzX7LFyRSJ42E7GkGKHJ3g4mPWRBiZYgQ7YBUr1Gq8UetWp8VBPLA0i-8ZqFeZMgngz0KEpL1lxiVmxdH8Fs6vJHjDht.jpg)

![Kair KMF125T 125 mm Inline Extractor Fan with Timer — 5](https://bargainpostbox.co.uk/i/cL5VwAuMF0orD0PuW9DXYfz97Z7NdsAQYxB0aBKDd6bmH806yZreyqklc0BoNhmo3_y7IFNWtmAaxjwXhqh8PbjTBAHmhWXDmSd8o8ePp3yIvYckZ8VpnsOb.jpg)

![Kair KMF125T 125 mm Inline Extractor Fan with Timer — 6](https://bargainpostbox.co.uk/i/8i3E7tIzzEBXsRHFp3IPVpNgM2GuJx-UDURlXA-KJlp_-PxJQIao_AQEhUyk_m76P4dtvGe3qiCGMpczq5w17vWAztry3_J5J-VijC4ZNMG2hBF5wRSWq4RH.jpg)

![Kair KMF125T 125 mm Inline Extractor Fan with Timer — 7](https://bargainpostbox.co.uk/i/lwGKZIKoPKxbUQhFcIY6Qdb6VaYHhKh7dTwZjRwu_i5aHVYEA98RBuWk0yfufwlmf8E_8MoGQXo-VLJFyDjH5zh6DQHZ7idf5t-XKwsajfz144EtY804_S2M.jpg)