Air Quality & Ventilation · Beginners
Extractor Fans for Beginners
By the Nest & Yard editorial teamUpdated 2026-08-094 min read
Our pick: the Envirovent SIL100 Silent-100 Axial Extractor Fan, 100mm/4 Inch, Timer Model, White — the best Extractor Fans we tested, from £44.45.
Ventilation is key to a healthy home, and extractor fans are the unsung heroes of kitchens and bathrooms, removing moisture and odours that can build up over time. If you’re looking at buying your first extractor fan, it's easy to get overwhelmed by the terminology – terms like ‘axial’, ‘inline’, and ‘timer’ all sound complicated! For a straightforward initial purchase, focus on motor size, ducting options, and noise levels as these are the most important factors for ensuring you get a fan that meets your needs.
See the full range in Extractor Fans.

#1 Pick
Envirovent SIL100 Silent-100 Axial Extractor Fan, 100mm/4 Inch, Timer Model, White- Standard
£44.45
Pros
- Very high review volume reflects long-standing reliability
- Built-in overrun timer clears steam after showers
- Quiet axial design suits small to medium bathrooms
Cons
- Timer model costs more than the basic non-timer version

#2 Pick
Manrose MF100T 100mm Inline Bathroom Extractor Fan with Timer, Black- High-Power
£64.00
Pros
- Inline mixed-flow design allows remote mounting away from the room
- Built-in timer keeps extracting after the light is switched off
- Higher airflow than standard wall/ceiling axial fans
Cons
- Requires more ducting run space than a simple wall fan

#3 Pick
Manrose QF100T Quiet Extractor Fan with Timer for 4"/100mm Duct- Standard
£32.40
Pros
- Quiet running with a built-in timer for automatic run-on
- Widely reviewed bestseller with a strong reliability track record
- Standard 100mm duct fits most existing bathroom installations
Cons
- Basic feature set with no humidity sensing

#4 Pick
VENTS Silenta 100mm Bathroom Extractor Fan with Run-On Timer- Standard
£26.59
Pros
- Budget-friendly price with a run-on timer included
- Extremely quiet operation for bedrooms and en-suites
- Compact housing suits ceiling or wall mounting
Cons
- Plastic housing feels less premium than pricier rivals
FAQ
What does 'airflow' mean when I'm looking at extractor fans?
Airflow refers to how much air the fan moves – measured in cubic metres per hour (cmh). A higher cmh rating generally means faster removal of moisture, particularly useful for larger kitchens or bathrooms.
Why is 'S-tube' important?
An S-tube is a flexible ducting system that directs the air from your extractor fan to the outside. It helps reduce turbulence and improves airflow efficiency compared to rigid plastic ducts.
What’s the difference between an ‘inline’ and ‘stand-alone’ extractor fan?
An inline fan connects directly to a single outlet, usually in a bathroom wall, while a stand-alone fan has its own built-in motor and exhaust hose – often preferable for kitchens.
What does 'dB' (decibels) measure?
dB indicates the loudness of the extractor fan. Lower dB ratings mean quieter operation; aim for 55dB or less for minimal disruption.
Should I consider the motor type – DC or AC?
AC motors are typically more powerful but can be louder, whereas DC motors are quieter and often more energy-efficient, particularly important if you use the fan frequently.
How do I measure my space for an extractor fan?
You need to determine the area of the room (length x width) in square metres. Then, a general rule is 1 cmh of airflow per square metre for basic ventilation.
Do I need a dimmer switch for my extractor fan?
No, you don’t usually require a dimmer switch unless your chosen model specifically states it supports dimming functionality – many standard fans operate at full power.
What about grease filters? Are they all the same?
Grease filters are designed to trap cooking fat and oil. Look for washable, metal filters which are more durable and easier to clean than flimsy plastic ones.
How do I install an extractor fan?
Installation generally involves connecting the ducting to the fan motor and then securing it in a suitable location, following the manufacturer’s instructions carefully – professional installation is recommended for complex setups.
What if the extractor fan isn't working after installation?
Consult the manufacturer's documentation or check the power supply connection. Refer to Amazon's standard returns policy for guidance on contacting the seller and potentially returning the product.
In depth
Let’s talk about extractor fans because getting one right is crucial for a comfortable and healthy home, especially in the kitchen. It's easy to get overwhelmed by all the different types and technical terms thrown around, but understanding a few key concepts will make your first purchase much simpler. Most of the initial confusion comes from trying to grasp what 'airflow' actually *means*. Simply put, airflow is measured in cubic feet per minute (CFM) – that’s how quickly the fan moves air out of your room. A higher CFM rating generally means a faster extraction, which is good for dealing with strong cooking smells or steam. However, don't automatically go for the highest CFM you can find; it also impacts energy consumption and noise levels.
The type of extractor fan itself comes in several varieties. There are ‘under-cabinet’ models designed to be mounted directly below your hob, ideal for smaller kitchens or individual hobs. These tend to have lower CFM ratings – often between 70 and 150 CFM – and are relatively inexpensive. Then you have ‘wall-mounted’ fans which sit flush against the wall above your cooking area. These can handle more powerful extraction, typically ranging from 200 CFM upwards, but they require a bit more installation work as you need to ensure adequate ducting runs back outside. Finally, there are ‘integrated’ fan hoods – these combine the extractor fan with a decorative hood, often made of stainless steel or glass. They usually offer good performance and look stylish, though they can be pricier than other options.
Another important factor is the ducting. This is the pipework that carries the extracted air from your extractor fan *outside*. It’s absolutely essential to have properly sized and installed ducting; a poorly fitted or undersized duct will significantly reduce the effectiveness of your fan, create negative pressure in your kitchen (which can actually draw smells back in!), and potentially damage your fan motor. The diameter of the duct is measured in inches – 4-inch ducts are common for under-cabinet fans, while larger 6-inch or even 8-inch ducts might be needed for wall-mounted models, particularly in bigger kitchens. Don't cut corners here; a professionally installed ducting system will provide the best performance and longevity.
Noise is another consideration that often gets overlooked. Extractor fans can get quite noisy, especially at higher speeds. Look for fans with a low decibel (dB) rating – ideally under 50 dB for a quieter operation. Many manufacturers list this information, but you might also find reviews from other buyers mentioning the noise level. You'll likely want to use the highest speed setting when cooking intensely, so consider how loud it will be during those moments. The motor itself generates most of the noise; some fans have vibration-dampening features which can help reduce this.
Things you can ignore initially are terms like ‘variable speed control’ and ‘boost mode’. These allow you to adjust the fan's power – useful for dealing with particularly strong smells or splashes. While these functions are beneficial, they aren’t essential for a first-time buyer. A fixed-speed fan will still provide adequate extraction for most kitchen activities. Similarly, features like timers (automatically switching off after a set period) and ‘automatic shut-off’ mechanisms can be useful but again, don't worry about them on your first purchase; you can always add these later if needed.
Finally, pay attention to the materials used in the fan’s construction – stainless steel is generally more durable and easier to clean than plastic. Also, consider the motor type: brushless DC motors are quieter and more energy-efficient than traditional AC motors, but they tend to be more expensive. Don't get caught up in fancy features you won't use; focus on getting a fan with adequate airflow for your kitchen size and a reliable motor that will last. Remember to check the manufacturer’s instructions regarding installation before beginning any work – safety first!
The Nest & Yard editorial team
Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-09.