# Xpelair C4TSR Simply Silent 100mm Extractor Fan, Timer

Source: https://www.ranked10.co.uk/home/best-bathroom-extractor-fans/xpelair-c4tsr-simply-silent
Ranked #6 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: £46.99 (checked on Amazon UK on 2026-09-19)
- Amazon rating: 4.2 from 859 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B08KQBLL2P?tag=ranked10-21

The Xpelair C4TSR is a 100mm (4-inch) bathroom extractor fan with a timer, finished in white and sold as part of the Simply Silent range. It sits at #6 in this guide at £46.99, with 4.2 out of 5 from 859 ratings. It is the fan the headline point of this article hangs on: it quotes 16 decibels, the lowest figure anywhere in the list, and it is the only fan here that does not say at what distance that reading was taken. Every other advert in this guide that names a distance uses 3 metres and quotes 25 to 35 dB.

The listing also disagrees with itself on air flow. The specification table gives a single figure, 15 litres per second — roughly 54 m³/h, below the 78 to 98 m³/h the other 100mm fans in this guide list. The bullet points say there are two speeds, 15 or 21 l/s, selected at installation, so the table is showing only the slower one; even at 21 l/s the figure works out at about 76 m³/h. Everything on this page comes from the Amazon listing and its published specifications, not from any test of our own.

## Specification

| Field | Value |
|---|---|
| Price | £46.99 |
| Rating | 4.2 out of 5, from 859 ratings |
| Noise level (as listed) | 16 Decibels — no measuring distance given |
| Air flow in the spec table | 15 litres per second |
| Air flow in the description | 15 or 21 l/s, chosen at installation |
| Power consumption | 6.3 / 7.0 watts (spec table lists 7 watts) |
| Speeds | 2 |
| Mounting | Wall, ceiling, panel or window mount |

## Questions people ask

**How loud is the Xpelair C4TSR?**

The listing gives a noise level of 16 decibels, but unlike the other 100mm fans in this guide it does not state at what distance that figure was measured.

**What is the air flow of the Xpelair C4TSR?**

The specification table lists 15 litres per second. The bullet points say the fan has two speeds, 15 or 21 l/s, selected at installation, so the table shows only the lower of the two.

**Does the Xpelair C4TSR have a timer?**

Yes. The timer appears in the product name and in the special features, and the fan is button controlled.

**How much power does the Xpelair C4TSR use?**

The bullets give 6.3 / 7.0 watts with an AC motor, while the specification table rounds this to 7 watts.

**Can the Xpelair C4TSR be ceiling mounted?**

The listing gives wall mount, ceiling mount, panel mount and window mount as installation types.

**What guarantee comes with the Xpelair C4TSR?**

The listing states a 2-year guarantee.