# Manrose MixFlo MF100T 100mm In-Line Extractor Fan with Timer

The Manrose MixFlo MF100T is a 100mm in-line mixed-flow extractor fan with a built-in run-on timer and three selectable speeds. Its listing describes extraction up to 245 m³/h on high, with lower airflow options for quieter or lower-energy operation. The timer needs permanent live, switched live and neutral wiring, so plan the electrical connection before choosing this model.

- [Original product page](https://bargainpostbox.co.uk/product/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [View offer](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Manrose
- Model: MF100T
- Category: Home & Kitchen > Heating, Cooling & Air Quality > Fans
- Price: 54.40 GBP
- Previous price: 64.00 GBP
- Discount: 15%
- Price checked: 2026-11-12T15:07:55.735Z
- Rating: 4.6 / 5
- Reviews: 2793

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

- Three airflow settings are listed, with separate high, medium and low airflow claims.
- The built-in timer is described as keeping the fan running after the light is switched off, for a preset adjustable period.
- 100mm spigots are described as suitable for rigid or flexible ducting.
- The manufacturer recommends electrician installation.

## Pros

- The three stated airflow levels provide a choice between stronger extraction and lower-speed running.
- A run-on timer can continue extracting after the room light is switched off, subject to the required wiring.
- The listing gives airflow, noise and power figures for different operating speeds, which helps compare the stated trade-offs.

## Specifications

### Identity and construction
- Brand: Manrose
- Model: MF100T
- Fan design: Exhaust Fan
- Form factor: tubular
- Colour: Black
- Material: Plastic
- Number of blades: 3
### Airflow and operation
- Airflow capacity: 245 Cubic Metres Per Hour
- High-speed airflow: 245 m³/h \(68 l/s\)
- Medium-speed airflow: 216 m³/h
- Low-speed airflow: 180 m³/h
- Maximum pressure: 200 Pa
- Noise level listed in details: 25 Decibels
- Noise on high: 24dB\(A\) at 3m
- Noise on medium: 22dB\(A\)
- Noise on low: 20dB\(A\)
### Power and controls
- Power configuration: Corded Electric
- Wattage listed in details: 25 watts
- Power consumption claim: 20 to 25W
- Control methods listed: App
- Speed selection described: Select the speed via an internal dip switch
- Timer wiring requirement: Requires a permanent live, switched live and neutral connection \(3 wires excluding earth\) at the fan position in order for the timer functionality to operate correctly
### Dimensions and installation
- Mounting type: Rigid Mount
- Dimensions listed: 20D x 31W x 25H centimetres
- Dimensions in feature text: Approx. 298 x 175 x 195mm \(L x W x H\)
- Weight listed: 2 Grams
- Spigot size: 100mm \(4"\)
- Spigot outside diameter: 102mm
- Spigot internal diameter: 98mm
- Duct compatibility: fit rigid or flexible ducting
- Installation recommendation: Electrician installation recommended
### Protection and stated compliance
- Ingress protection: IPX4
- Stated standards: BEAB, CE
- Operating temperature limit: Max operating temperature 40°C
- Electrical construction claim: Double insulated, so no earth needed
### Motor and warranty claims
- Motor type: ball bearing
- Motor warranty claim: 30,000 hours or 3 years
- Product warranty claim: 3 YEAR WARRANTY

## Before you buy

- The timer requires permanent live, switched live and neutral at the fan position. The listing says that without the timer function an alternative MF100S model should be selected.
- The manufacturer says the motor is warranted for 30,000 hours or 3 years and recommends electrician installation. Check the applicable warranty terms before purchase.
- The listing contains inconsistent technical entries: dimensions are given as both 20D x 31W x 25H centimetres and approximately 298 x 175 x 195mm, weight is listed as 2 Grams, and the details say 25 Decibels while the speed-specific claims give 24dB\(A\) at 3m on high, 22dB\(A\) on medium and 20dB\(A\) on low. The App control-method entry is also unconfirmed against the speed-selection description of an internal dip switch. Confirm the relevant dimensions and control details for the selected listing.
- The airflow and noise figures are manufacturer claims rather than independent measurements. The stated noise figures specify 3m only for the high-speed figure.

## In the box

- Cord (Included)

## A good fit for

- Buyers replacing a 100mm duct fan who need a timer-controlled run-on function and can provide its specified wiring.
- Bathroom or shower-room installations where the stated three speeds and separate airflow figures help weigh extraction against noise and power use.
- Installations with rigid or flexible ducting, subject to verifying the actual fan dimensions and duct fit.

## Less suited to

- Installations without permanent live, switched live and neutral at the fan position when the timer is required.
- Buyers who need confirmed app control or a verified exact overall size before ordering.

## Customer feedback

Customer feedback is notably positive about perceived build quality, quiet running, extraction effectiveness, ease of installation and running economy. These comments may matter to buyers weighing a bathroom fan’s noise and moisture-removal performance, but they are customer perceptions rather than verification of the listed airflow, noise or power figures. Aggregate ratings are mostly five-star, while a smaller share is lower, so experiences are not uniform.
- Positive themes: Customer feedback highlights perceived quality, quiet operation, effectiveness, installation ease and economical running.

## Frequently asked questions

### Does the MF100T have a run-on timer?
Yes. The listing describes a built-in adjustable timer that keeps the fan running for a preset period after the room light is switched off.
### What wiring does the timer need?
The listing specifies permanent live, switched live and neutral at the fan position, three wires excluding earth. It recommends installation by an electrician.
### What airflow does it provide?
The feature claims state 245 m³/h on high, 216 m³/h on medium and 180 m³/h on low. These are listing claims, not independent measurements.
### Will it fit a 100mm duct?
The listing specifies 100mm spigots and says they fit rigid or flexible ducting. It also gives conflicting overall dimensions, so confirm the size needed for your installation.

## Alternative options

- [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/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [Black Orchid 4 Inch Grow Room Extractor Fan, Mixed-Flow \| 100mm Duct Fit, Supplied With UK Plug And Lead For Quiet, Straightforward Hydroponic Ventilation.](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [Hon&Guan 150mm Inline Ventilation Fan with Speed Controller, Inline Extractor Fan 587 m³/h Airflow with UK Plug in Attic, 3D Printer,Garage, Kitchen, Grow Tent \(6 inch\)](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [Blauberg Centro 100mm Centrifugal In-Line Extractor Fan \| Powerful Extraction Designed For Longer Duct Runs And More Complex Installations](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-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/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [AC Infinity CLOUDLINE S6, Quiet 150mm Inline Duct Fan \| with Speed Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics, 6-Inch](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [100 mm / 4 inch Inline Mixed Flow Fan, Extractor Fan, 2 speed, 170 m³/h, Enclosed Electric Fan Ventilation for Kitchen Bathroom Shower Grow Room Hydroponics - with plug \[Fan + Full Ventilation kit\]](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [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/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [CubeTECH CTi100t 100mm \(4"\) Inline Bathroom Extractor Fan w/Timer, Two-Speed](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [Kair Inline Extractor Fan Ø100mm with Timer \| Inline Fan for Bathroom \| Multifan Fits Ø100mm plastic ducting \| 2 speed settings \| Silent fan \| Easy fit in lofts \| Tackle damp, mold, shower moisture](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [AirTech-UK FlowMax Turbo Inline Bathroom Extractor Fan Kit Run on Timer - 4 inches 100mm Duct Opening - High Power – Silent Extractor Fan For Bathroom – 1 Speed - Loft Ceiling Mounted](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [AirTech- UK Air Vent with LED Light and Transformer 4 inches 3W with Chrome & White Grille Fits 100mm /4 inch Ducting Bathroom Shower Air Vent with Light](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)

## Add-ons

- [Kair 100mm Round Ducting Connector for Pipe or Flexible Hose \| 2m length, For extractor fans and cooker hoods](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)
- [Fantronix 100mm Flexible Vent Hose, 3m, for Tumble Dryers & Cooker Hoods \| Suitable For Extractor Fans And General Domestic V](https://bargainpostbox.co.uk/visit/manrose-mixflo-mf100t-inline-extractor-fan-timer)

## Images

![Manrose MixFlo MF100T 100mm In-Line Extractor Fan with Timer — 1](https://bargainpostbox.co.uk/i/JJBsUXPU0oVeDn6ATHQGPjeCZpx-KYUIkMBzT8OZDM7McB8wEqC8dbse35gKTHp-_MT06Ik7QwwVbkraNcL9dUy9OKsvfeAqcIrkv4jcsgG3A1fGNEan36Lk.jpg)