Product guide

Manrose QF100T 100mm Quiet Bathroom Extractor Fan with Timer

The Manrose QF100T is a 100mm bathroom extractor fan with an adjustable overrun timer, backdraught shutters and wall or ceiling mounting claims. Its listed low-noise and low-power figures make it worth considering where quiet ventilation matters, but the product details give conflicting power and airflow measurements that should be checked before purchase.

At a glance

The listing claims a 27dB(A) noise level and extraction of up to 75 m³/h, aimed at quieter bathroom or toilet ventilation.
An adjustable electronic timer is claimed to keep the fan running for 1 to 20 minutes after switch-off.
Integral backdraught shutters are claimed to help limit reverse draughts.
The product description says it suits wall or ceiling mounting and standard 100mm ducting.

Price

£28.04Save 16%

Reference price: ~~£33.25~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

An adjustable overrun timer can continue extraction after the room light or fan switch is turned off.
A claimed 27dB(A) noise level may suit bathrooms close to bedrooms or other quiet areas.
The listing specifies backdraught shutters and a compact projecting faceplate.

Technical specifications

25 specifications

Identity and operation
Brand	Manrose
Model	QF100T
Fan design	Exhaust Fan
Control methods listed	Touch
Power configuration	Corded Electric
Timer overrun	1 to 20 minutes after switch-off

Performance claims
Noise level	27 Decibels
Wattage in product details	4.8 watts
Airflow in product details	21 Cubic Feet Per Minute
Voltage	240 Volts
Claimed extraction rate	75 m³/h (21 l/s)
Claimed maximum power	5 watts

Dimensions and installation
Mounting types listed	Wall Mount
Dimensions listed	4.4D x 6.4W x 6.4H centimetres
Faceplate dimensions	163 x 163mm
Faceplate projection	28mm
Spigot diameter and length	98mm diameter spigot (83mm long)
Weight listed	1.37 Pounds
Ducting size claim	100mm (4") ducting

Materials and protection
Material listed	Plastic
Backdraught protection	integral backdraught shutters
Specification claim	Part F & L
Electrical installation claim	Double insulated

Service claims
Motor warranty claim	3 years
Motor life claim	30,000 hours

What to know before buying

Listing details to confirm

The listing's power figures are inconsistent: the title says 5W, the details say 4.8 watts, and the feature text says maximum 5 watts. Airflow is also expressed as 21 Cubic Feet Per Minute in details and 75 m³/h (21 l/s) in the feature text. Confirm the intended figures and the selected model details before buying. The listing recommends a 3A fused isolator and electrician installation.

What’s in the box

Included

QF100T

Who is it for?

A good fit for

Buyers seeking a compact 100mm bathroom or toilet extractor with an adjustable overrun timer.
Households prioritising a low claimed noise level and integral backdraught shutters.

Less suited to

Buyers who need verified airflow or power figures before selecting a fan, until the listing's inconsistent specifications are clarified.

Customer reviews on Amazon

4.4 / 5 · 3,763 ratings

5 stars68%68%
4 stars20%20%
3 stars6%6%
2 stars2%2%
1 star4%4%

Customer feedback highlights quiet operation, perceived quality and ease of fitting existing holes, with some customers also praising the timer and airflow. Experiences with the timer and airflow are mixed, and durability concerns include reports of units failing after a short period or after several years. For buyers choosing this fan for quiet bathroom ventilation, those reports make timer reliability and expected service life worth weighing alongside the listing's performance claims.

Positive themes

Customers describe the fan as quiet and good quality.
Some customers report easy fitting in existing holes and appreciate its functionality.

Negative themes

Some customers report durability concerns, including units failing after a short period or after several years.

Mixed feedback

Timer feedback varies, with praise alongside reports of it not working properly.
Airflow feedback varies, with some customers praising it and others reporting insufficient air movement.

Frequently asked questions

How long does the timer keep the fan running?

The feature description says the electronic timer runs the fan for 1 to 20 minutes after switch-off.

What airflow and power should I expect?

The listing gives conflicting figures. It claims up to 75 m³/h and 5 watts in the feature text, while product details state 21 Cubic Feet Per Minute and 4.8 watts. Confirm these figures with the selected listing before purchase.

Can it be mounted on a ceiling?

The product feature text says wall or ceiling mounting is suitable. The technical details list Wall Mount, so check the installation requirements for your intended position.

Does it include backdraught protection?

The feature text claims integral backdraught shutters.