Rank #1 in Best Bathroom Extractor Fan 2026: 10 Ranked, and the 16 dB Claim That Isn't Measured
Envirovent SIL100 Silent-100 Timer Extractor Fan, 100mm
Price and rating as shown on Amazon when we collected them. Both change.
The Envirovent SIL100 is the number one pick in our best bathroom extractor fans guide. It's a 100mm axial fan with a timer, listed at £41.99. The Amazon listing quotes an extract rate of 96 cubic metres per hour (26 litres per second) and a noise output of 26.5 dB(A) at 3 metres — one of the few listings in this category to state the distance for its noise figure. It also claims 8 watts power consumption, IP45 rating, and a 99mm spigot for 100mm ducting. The listing has a 4.4-star rating from 4,001 reviews.
But the numbers in the same listing don't always agree. The bullet points say 26.5 dB(A) at 3 metres, while the specifications table lists 26 decibels. That's a small but real mismatch. Elsewhere, the specs include a 'Standby Power Shutoff' of 12 cubic meters per hour per watt — a metric that doesn't appear on any other fan listing in this guide. We haven't tested the SIL100 ourselves; everything on this page comes from the Amazon listing, not from our own measurements.
How those 4,001 ratings break down
An average hides its own shape. This is the spread behind the 4.4 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £41.99 |
|---|---|
| Rating | 4.4 out of 5 from 4,001 reviews |
| Extract rate | 96 cubic metres per hour (26 litres per second) |
| Noise level (as listed) | 26.5 dB(A) at 3 metres (bullets) / 26 dB (specs) |
| Power consumption | 8 watts |
| IP rating | IP45 |
| Timer | Adjustable timer model |
| Spigot diameter | 99 mm (for 100 mm ducting) |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Very easy to fit. There was no instructions included with mine but I got the product pdf online. As there was a grey wire I looked that up too for safety and it was as expected. Live permanent/ live switched (to switch) and neutral. No earth required as self insulated product.Has a decent draw, I think I will shorten the flexi ducting in my ceiling to make it even more effective. Low noise. My tenant was concerned about the red light but it's just to show that there is power to the unit.”
Verified purchase“Far from silent but still a much better fan than the one it replaced. Good value for money too.As another reviewer noted, the entry point for the cable and the connectors are down at the bottom right, which is diagonally opposite where the entry point was on my previous Avenue/Manrose fan. So that did mean cutting out a new entry and then extending the supply cable inside the fan casing. Not very hard to do but extra hassle if you are replacing an otherwise almost identical unit.”
What it is up against
The rivals it was ranked against in Best Bathroom Extractor Fan 2026: 10 Ranked, and the 16 dB Claim That Isn't Measured.
Questions people ask
What is the extraction rate of the Envirovent SIL100?
The listing states an extract rate of 96 cubic metres per hour (26 litres per second).
How noisy is the Envirovent SIL100?
The bullet points say 26.5 dB(A) at 3 metres, while the specifications list 26 decibels.
Does the Envirovent SIL100 have a timer?
Yes, it is the adjustable timer model.
What is the power consumption?
The listing states 8 watts.
What is the IP rating?
The Envirovent SIL100 is IP45 rated.
What ducting does it fit?
The spigot is 99mm diameter for connection to 100mm ducting.
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