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.
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.
Reference price: £64.00
Price checked: 12 Nov 2026
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Pros and cons
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.
Technical specifications
38 specifications| Brand | Manrose |
|---|---|
| Model | MF100T |
| Fan design | Exhaust Fan |
| Form factor | tubular |
| Colour | Black |
| Material | Plastic |
| Number of blades | 3 |
| 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 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 |
| 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 |
| 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 type | ball bearing |
|---|---|
| Motor warranty claim | 30,000 hours or 3 years |
| Product warranty claim | 3 YEAR WARRANTY |
What to know before buying
- 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.
Listing details to confirm
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.
What’s in the box
Included- Cord
Who is it for?
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 reviews on Amazon
- 5 stars
75% 75% - 4 stars
18% 18% - 3 stars
4% 4% - 2 stars
1% 1% - 1 star
2% 2%
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.
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