---
product_id: 48253679
title: "SIL100 Silent-100 Axial Silent Extractor Fan Axial 100 mm / 4 Inch Timer Model (White)"
brand: "envirovent"
price: "€ 85.50"
currency: EUR
in_stock: true
reviews_count: 8
category: "Envirovent"
url: https://www.desertcart.ie/products/48253679-sil100-silent-100-axial-silent-extractor-fan-axial-100-mm
store_origin: IE
region: Ireland
---

# 26 L/s extraction power Ultra-quiet 26.5 dB sound level Adjustable timer for custom ventilation SIL100 Silent-100 Axial Silent Extractor Fan Axial 100 mm / 4 Inch Timer Model (White)

**Brand:** envirovent
**Price:** € 85.50
**Availability:** ✅ In Stock

## Summary

> 💨 Silent power that keeps your space fresh and your vibe uninterrupted

## Quick Answers

- **What is this?** SIL100 Silent-100 Axial Silent Extractor Fan Axial 100 mm / 4 Inch Timer Model (White) by envirovent
- **How much does it cost?** € 85.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/48253679-sil100-silent-100-axial-silent-extractor-fan-axial-100-mm)

## Best For

- envirovent enthusiasts

## Why This Product

- Trusted envirovent brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek, compact design:** Fits seamlessly with 100mm ducting and installs easily in tight ceiling spaces.
- • **Award-winning silent efficiency:** Quiet Mark 2013 winner ensures minimal noise disruption in your space.
- • **Built to last, built for safety:** IP45 water-resistant rating and CE approved for reliable, worry-free operation.
- • **Tailored ventilation on your terms:** Adjustable timer lets you control overrun duration for optimal air freshness.
- • **Powerful airflow, discreet presence:** Extracts an impressive 96 m³/hr while staying whisper-quiet at 26.5 dB.

## Overview

The Envirovent SIL100 is a premium 4-inch axial extractor fan delivering a robust 26 litres per second airflow at an ultra-quiet 26.5 dB. Featuring an adjustable timer for customizable ventilation, IP45 water resistance, and CE approval, it combines award-winning silent operation with efficient, reliable performance—perfect for modern homes seeking discreet, powerful air extraction.

## Description

Powerful 26 l/s extraction rate and ultra-quiet 26.5 dB operation make this 4-inch axial fan ideal for discreet ventilation. Features adjustable timer and IP45 rating.

Review: Very quiet fan - Great little fan, easy to install and it’s very quiet. Good price and prompt delivery.
Review: Quiet running efficient fan - The fan is not silent in operation but has a quiet low air rushing sound. No vibrations that can be heard outside the room when the door is closed. The back draught flap is just a thin plastic film that you might be tempted to throw out as packaging if you did not know. It seems to be effective as I can feel no back draughts in the light wind conditions in recent days. Also you do not hear any clacking as you would from a mechanical back draught protector opening and closing in gusty conditions. I ordered the version with just the adjustable over run timer. (So had live and switched live available at the point of installation.) I turned the adjustment trim pot up full then backed off a quarter turn. This gives me 18 minutes of over run after it is switched off. This works well for the shower room and all steam is cleared. Installation was easy to complete.

## Features

- Extract Rate: Impressive 26 litres per second, 96 cubic metres per hour. This is one of the highest extraction rates for any 4" axial fan.
- Sound output: 26.5 dB (A) @ 3 metres. This is one of the quietest fans in the market. Awarded Quiet Mark award 2013.
- Adjustable Timer model. Power Consumption: 8 watts.
- IP45 rated. Mains 230/240V AC. Please see Product Information section for important electrical connection requirements. CE approved.
- Dimensions: 158mm wide x 158mm high. Spigot is 99mm diameter (for connection to 100mm ducting) and projects for 80mm beyond installed surface.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0080XNKQ0 |
| Air Flow Capacity | 96 Cubic Metres Per Hour |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 1,623 in DIY & Tools ( See Top 100 in DIY & Tools ) 2 in Bathroom Fans |
| Blade length | 100 Millimetres |
| Certification | [AS] ENERGY STAR |
| Colour | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,928) |
| Date First Available | 19 May 2012 |
| Finish | White |
| Included Components | SIL100T |
| Installation method | Ceiling Installation |
| Item Package Quantity | 1 |
| Item Weight | 250 g |
| Item model number | SIL100 |
| Manufacturer | Envirovent |
| Number of Pieces | 1 |
| Part Number | SIL100T |
| Power Source | Corded Electric |
| Product Dimensions | 6.3 x 5.35 x 6.54 cm; 250 g |
| Size | 4 Inch |
| Sound level | 26 Decibels |
| Special Features | Quiet,Timer,Lightweight,Water Resistant |
| Style | Classic |
| Switch style | Timer |
| Voltage | 240 Volts |
| Wattage | 8 watts |

## Product Details

- **Brand:** Envirovent
- **Colour:** White
- **Electric fan design:** Exhaust Fan
- **Mounting type:** Wall Mount, Ceiling Mount
- **Power source:** Corded Electric
- **Product dimensions:** 5.4D x 6.3W x 6.5H centimetres
- **Recommended uses for product:** Indoor,Ventilating,Exhausting
- **Room type:** Bathroom,Toilet,Kitchen
- **Special feature:** Quiet,Timer,Lightweight,Water Resistant
- **Style:** Classic

## Images

![SIL100 Silent-100 Axial Silent Extractor Fan Axial 100 mm / 4 Inch Timer Model (White) - Image 1](https://m.media-amazon.com/images/I/51jRMa2Kd6L.jpg)

## Questions & Answers

**Q: Timer function appears to have stopped working, continues to run after it is switched off and after the time delay set on the timer. Any suggestions?**
A: I have this problem, but it has never turned off!!?

**Q: Is it wired to the light and has a time delay when light switched off**
A: Yes it is wired to the light and the timer delay can be set for up to 30 mins.

**Q: There seems to be some confusion over the back draught shutter, is there one supplied or not please?**
A: There is a backdraught shutter supplied, although I would prefer to call it a thin piece of plastic, an after thought which is connected to the rear of the fan. I would recommend buying a separate backdraught shutter. I brought one which was a plastic spigot with a rubber shutter, which fits inside the ducting. This does not make any noise when it is windy outside.

**Q: Where is the item**
A: That presumably is a question for Amazon.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very quiet fan
*by L***A on 25 January 2026*

Great little fan, easy to install and it’s very quiet. Good price and prompt delivery.

### ⭐⭐⭐⭐⭐ Quiet running efficient fan
*by A***D on 7 November 2025*

The fan is not silent in operation but has a quiet low air rushing sound. No vibrations that can be heard outside the room when the door is closed. The back draught flap is just a thin plastic film that you might be tempted to throw out as packaging if you did not know. It seems to be effective as I can feel no back draughts in the light wind conditions in recent days. Also you do not hear any clacking as you would from a mechanical back draught protector opening and closing in gusty conditions. I ordered the version with just the adjustable over run timer. (So had live and switched live available at the point of installation.) I turned the adjustment trim pot up full then backed off a quarter turn. This gives me 18 minutes of over run after it is switched off. This works well for the shower room and all steam is cleared. Installation was easy to complete.

### ⭐⭐⭐⭐ Quiet but not silent SIL100 VENT FAN
*by M***S on 2 October 2025*

Looks good and does the job, but is not ‘silent’. I’d give it a quiet , but same noise as the old 20 year old fan it replaced. And I have mounted it well - no stress to make it noisy. Cut off timer seems to work ok and is adjustable. Overall I’m pleased.

## Frequently Bought Together

- Envirovent SIL100 Silent-100 Axial Silent Extractor Fan Axial 100 mm / 4 Inch Timer Model (White)
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- Kair White Louvred Wall Vent Grille 155mm External Dimension with Flyscreen and Round 100mm - 4 inch Rear Spigot

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-05*