# Manrose QF100T Quiet Extractor Fan with Timer, 100mm

Source: https://www.ranked10.co.uk/home/best-bathroom-extractor-fans/manrose-qf100t-extractor-fan
Ranked #3 in "Best Bathroom Extractor Fan 2026: 10 Ranked, and the 16 dB Claim That Isn't Measured": https://www.ranked10.co.uk/home/best-bathroom-extractor-fans

- Price: £30.99 (checked on Amazon UK on 2026-09-19)
- Amazon rating: 4.4 from 3,739 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B00CJ8L8ZM?tag=ranked10-21

The Manrose QF100T is a 100mm extractor fan for wall, ceiling or panel mounting, with a timer over-run and a backdraught shutter. It is priced at £30.99 and rated 4.4 out of 5 across 3,739 ratings. It sits third in this guide for one specific reason: of the fans here that quote a decibel figure and say how they got it, this is the one that names the hardest condition. The listing states 27 dB and adds that the product is tested in an anechoic chamber to a recognised standard. The other fans in this list that give a distance all measure at 3 metres, and one fan claims 16 dB without stating any distance at all. A lower number on a rival's page is not the same measurement as this one.

The airflow figure runs the other way. The Manrose QF100T lists its air flow capacity as 21 Cubic Feet Per Minute, which is roughly 36 m3/h, in a class where the fans around it list between 78 and 98 m3/h. This fan is quoted at 4.8 watts, the same sort of motor as those rivals, so the gap is either real or the figure has been entered in different units from everyone else's. The listing does not say which. Everything on this page — the noise figure, the airflow figure, the rating — comes from the Amazon listing for the Manrose QF100T and not from any test we have run.

## Specification

| Field | Value |
|---|---|
| Price | £30.99 |
| Rating | 4.4 out of 5 from 3,739 ratings |
| Noise level | 27 dB |
| Test conditions | Anechoic chamber, to a recognised standard (as stated in the listing) |
| Air flow capacity (as listed) | 21 Cubic Feet Per Minute |
| Wattage | 4.8 watts at 240 volts |
| Duct and mounting | 4"/100mm duct; wall, ceiling or panel |
| IP rating | IP44; listing says Part F & L |

## Questions people ask

**How quiet is the Manrose QF100T?**

The listing states 27 dB and adds that the product is tested in an anechoic chamber to a recognised standard, so the figure comes with its test conditions attached.

**How much air does the Manrose QF100T move?**

The specifications give the air flow capacity as 21 Cubic Feet Per Minute, which is roughly 36 m3/h — well below the 78 to 98 m3/h listed by other 100mm fans in this guide.

**Will it fit a standard 100mm duct?**

Yes. The Manrose QF100T is sold for 4"/100mm duct, and the listing gives wall, ceiling and panel as installation types.

**What does the timer do?**

The listing describes a timer over-run plus a backdraught shutter, so the fan keeps running after the switch goes off and the shutter stops air coming back.

**What are the electrical figures?**

4.8 watts at 240 volts, corded electric, brushless motor with two power levels.

**What IP rating does it carry?**

IP44, and the listing says the Manrose QF100T meets Part F & L.