10 Best 4 Inch Inline Extractor Fan Silent in The UK

Last updated on 11/08/2025
Advertising disclosure
Best Choice
1
9.7
Exceptional
VENTS 4 inch Inline Bathroom Extractor Fan Kit Silent Timed Universal Loft Ventilation System for 100 mm Flexible Duct Shower Circular Ceiling Diffuser White Plastic Louvre, KIT-VU-TT-100-T-DPR
VENTS
VENTS 4 inch Inline Bathroom Extractor Fan Kit Silent Timed Universal Loft Ventilation System for 100 mm Flexible Duct Shower Circular Ceiling Diffuser White Plastic Louvre, KIT-VU-TT-100-T-DPR
Why We Love It
  • Efficient air ventilation solution.
  • Noise-friendly with adjustable timer.
  • Easy installation and cleaning.
Main Highlights
  • Wattage: 7.5 watts
  • VENTS WHITE UNIVERSAL INLINE FAN KIT is designed for safe & high-performance ventilation of air from wet rooms, bathrooms, kitchens, & utility rooms. Simple & easy to install with all the items you need for an extractor system in one simple kit. The kit contains the following components:
  • 4 INCH MIXED FLOW TECHNOLOGY INLINE FAN WITH TIMER: Will move up to 187 m3/hour (52 l/s) of air with a noise level of no more than 32 dB(A) @ 3m. Equipped with an adjustable internal turn-off delay timer (from 2 to 30 minutes). EFFICIENT 7.5 W GERMAN MOTOR with overheating protection. IPX4 rated.
  • 100MM DIAx3M WHITE PVC DUCTING: Manufactured to EU standard: EN13180 & BS 476. Fits over the internal ceiling mounted vent, extractor fan, & external wall grille.
  • 4 INCH EXTERNA WALL VENT: Weatherproof louvred vent grille is finished in white. The vent grille is fitted with an insect mesh, & a removable core for easy cleaning.
  • WHITE INTERNAL CEILING VENT DIFFUSER: with mini multi-cone construction to reduce drafts & cold spots. UV protected to prevent yellowing over time. An easy-to-fit diffuser that fits flush to a plasterboard ceiling & connects directly to 100mm (4'').
9.7
Exceptional
Amazon Logo
Best Value
2
9.6
Superb
Devola Inline Mixed Flow 100 mm Bathroom Fan, 4 Inch Extractor Fan With Timer For Kitchen & Bathroom, Made in Britain
Devola
Devola Inline Mixed Flow 100 mm Bathroom Fan, 4 Inch Extractor Fan With Timer For Kitchen & Bathroom, Made in Britain
Why We Love It
  • Powerful airflow for efficient ventilation.
  • Robust design ensures long-lasting durability.
  • Quiet operation maintains a peaceful environment.
Main Highlights
  • 【Powerful Airflow】Powerful in-duct mounted mixed flow extractor fan designed to provide an airflow rate of 187 m³/hour, higher working pressures for applications that require high air flows, with low relative noise. can be mounted in a variety of applications and are suitable for use with either rigid or flexible ducting (100mm diameter)
  • 【Robust Design】The body is made from low-flammable polypropylene and is designed to accommodate all standard 100mm duct sizes. It includes a removable central section for effortless cleaning and maintenance. Rated IPX4, complying with Building Regulations Parts F and L.
  • 【Quiet Operation & Timer Function】Operates quietly at 27 decibels, ensuring a healthy, mold-free environment through advanced engineering. This fan also comes with timer function
  • 【Dimensions】The fan dimensions are 190mm (H) x 167mm (W) x 246mm (L), with a spigot featuring an outer diameter of 96mm, designed for 100mm duct connections.
  • 【TRUSTED BRITISH BRAND】- This Devola product comes with 5 years of free warranty and a lifetime of product support
9.6
Superb
Amazon Logo
3
9.4
Superb
AirTech-UK FlowMax Turbo Inline Bathroom Extractor Fan Kit – 4-inch (100mm) Duct Opening – High Power - Silent Extractor Fan for Bathroom – 1 Speed – Loft Ceiling Mounted
AirTech-UK
AirTech-UK FlowMax Turbo Inline Bathroom Extractor Fan Kit – 4-inch (100mm) Duct Opening – High Power - Silent Extractor Fan for Bathroom – 1 Speed – Loft Ceiling Mounted
Why We Love It
  • Powerful airflow for freshness.
  • Whisper-quiet for relaxation.
  • Easy plug-in installation.
Main Highlights
  • Powerful Ventilation for a Fresher Bathroom – The FlowMax Turbo single-speed fan delivers high airflow up to 310m³/h, effectively eliminating moisture, odors, and pollutants for a cleaner, fresher bathroom environment.
  • Whisper-Quiet Operation for Undisturbed Comfort – Operating at just 34dB, this extractor fan provides powerful ventilation without disruptive noise, making it perfect for bathrooms, ensuites, and other relaxation spaces.
  • Plug-In Convenience for Easy Setup – Designed with a standard plug, this fan is simple to install without the need for complex wiring, making it an ideal choice for quick and hassle-free ventilation solutions.
  • Complete All-in-One Kit for Easy Installation – Comes with everything needed for a seamless setup: adjustable timer fan, chrome & white vent fascias, heavy-duty 5m ducting, and exterior grille—no additional parts required!
  • Durable & Reliable Performance – Crafted from high-quality ABS plastic, CE-rated, and IP44 certified for safety and durability. Runs on 40W power, 2600RPM speed, and 220V/50Hz voltage, ensuring consistent, efficient operation.
9.4
Superb
Amazon Logo
4
9.3
Superb
Save 6%
VENTS UK 4 inch Loft Mounted Inline Shower Ceiling Powerful Ventilation Damp Control 100mm In Line Bathroom Extractor fan with Run On Timer 100 mm Silent In-line Toilet Ventilator
VENTS UK
VENTS UK 4 inch Loft Mounted Inline Shower Ceiling Powerful Ventilation Damp Control 100mm In Line Bathroom Extractor fan with Run On Timer 100 mm Silent In-line Toilet Ventilator
6% Off
Why We Love It
  • Powerful performance in quiet operation.
  • Assured quality with certification.
  • Innovative design for versatility.
Main Highlights
  • Quiet and powerful mixed flow fan for use with up to 6m ducting.
  • 2 speed operation with adjustable timer models.High performance up to 187 m3/hr.
  • Complies with the latest Building Regulations ADF 2006 & Quality assured to ISO9001.
  • Remote mounting in lofts and cupboards.Thermally protected motor.Mounting bracket supplied
  • Two fans in parallel – double the flow.Double-up – Two fans in series – double the pressure.
9.3
Superb
Save 6%
Amazon Logo
5
9.2
Superb
Save 5%
FanGoFast Smoke Inline Extractor Fan 100mm/4 inch with Adjustable Speed Controller and UK Plug, Quiet Ventilation Fan for Bathroom, Office, Grow Rooms (Black, 100mm)
FanGoFast
FanGoFast Smoke Inline Extractor Fan 100mm/4 inch with Adjustable Speed Controller and UK Plug, Quiet Ventilation Fan for Bathroom, Office, Grow Rooms (Black, 100mm)
5% OffFree Shipping
Why We Love It
  • High Performance with Low Noise.
  • Versatile 2-in-1 Installation Options.
  • Robust, Durable and Waterproof.
Main Highlights
  • ✅FOR FREE - 1 screwdriver, 4 screws and 4 screw caps included.
  • HIGH PERFORMANCE - This in-line duct fan has a built-in two-speed controller to regulate the airflow. An air throughput of up to 198 m³/h can be achieved. Equipped with ball bearings to ensure the duct fan works with a low noise level, which is around 31dB. Unlike EC chimney duct fans, which tend to be noisier, this fan offers great value for money over the long term.
  • ROBUST & DURABLE: The tube fan body is made of high strength ABS material, which has the advantages of corrosion resistance, long service life and safety. The duct fan 100mm silent has also successfully passed the drop test, which in turn ensures structural stability. The copper NSK double ball bearing motor ensures high efficiency and a long MTBF of up to 50000 hours.
  • 2-IN-1 DUCT FAN 100MM- The two duct brackets of the exhaust fan can either be detached and installed in the duct in the household ventilation system as a duct duct fan, or used directly for ventilation in small spaces such as greenhouses, hydroponics, workbenches, basements, 3D laser printers, etc .
  • POWERFUL& LOW NOISE: The in-line extractor fan uses a 100% pure copper double ball bearing motor to ensure quiet operation and is equipped with 7 fan blades for more stable operation of the in-line extractor fan.Voltage: 230V/50Hz, power: 26/23W (high/low), speed: 2200/1850RPM, air volume: 198m³/h, 165m³/h (high/low).
  • CUSTOMER-FRIENDLY SERVICE - Each exhaust fan undergoes strict quality control before delivery. We also have a professional customer service team to take care of your needs. Please do not hesitate to contact us if you have any questions about our in-line fans. We offer 18 months after-sale service.
9.2
Superb
Save 5%
Amazon Logo
6
9.0
Superb
Envirovent SIL100 Silent-100 Axial Silent Extractor Fan Axial 100 mm / 4 Inch Timer Model (White)
Envirovent
Envirovent SIL100 Silent-100 Axial Silent Extractor Fan Axial 100 mm / 4 Inch Timer Model (White)
Why We Love It
  • High extraction rate.
  • Ultra-quiet operation.
  • Energy-efficient design.
Main Highlights
  • 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.
9.0
Superb
Amazon Logo
7
8.9
Excellent
Save 20%
Xpelair C4TSR Extractor Fan with Timer 4" 100mm Simply Silent Range - White
Xpelair
Xpelair C4TSR Extractor Fan with Timer 4" 100mm Simply Silent Range - White
20% OffFree Shipping
Why We Love It
  • Optimized airflow speeds.
  • Low energy consumption.
  • Stylish baffle choices.
Main Highlights
  • 2 speed options, 15 or 21 l/s, selected at installation for application
  • 6.3 / 7.0 watt power consumption using AC motor
  • Supplied with both circular and square baffles for preferred style finish
  • Ghost Airmovement technology for near silent running
  • IPX4 rated and a 2-year UK guarantee
8.9
Excellent
Save 20%
Amazon Logo
8
8.8
Excellent
VENTS UK 100mm 4 inch diameter Inline Extractor Fan Bathroom Shower Ceiling Loft Mounted Powerful Ventilation Damp Control Silent In-line Toilet Office Utility Room
VENTS UK
VENTS UK 100mm 4 inch diameter Inline Extractor Fan Bathroom Shower Ceiling Loft Mounted Powerful Ventilation Damp Control Silent In-line Toilet Office Utility Room
Why We Love It
  • Quiet yet powerful ventilation.
  • Versatile two-speed operation.
  • Complies with regulations.
Main Highlights
  • ✅ Product Overview: Quiet And Powerful Mixed Flow Fan: Enhance Your Ventilation System With Our Remarkable Mixed Flow Fan, Designed For Seamless Integration With Up To 6 Meters Of Ductwork. Combining Quiet Operation With Impressive Power, This Fan Ensures Optimal Airflow And Superior Performance.
  • ✅ Two Speed Operation With Basic Switching: Take Control Of Your Ventilation Needs With Our Two Speed Operation Feature.
  • Brand: Quiet And Powerful Mixed Flow Fan For Use With Up To 6M Ducting.
  • ✅ Compliance With The Latest Building Regulations: Rest Our Mixed Flow Fan Complies With The Rigorous Standards Set By The Latest Adf Building Regulations 2006. This Ensures That The Fan Meets The Necessary Requirements For Safe And Efficient Operation
8.8
Excellent
Amazon Logo
9
8.7
Excellent
4 Inch - 100 mm Universal Budget Silent Fan Filter Duct Kit for Grow Tent Quiet Operation Inline Extractor Fan Air Diffuser Hydroponic Carbon Filter Flexible Ducting Smell Odor Temperature
BLACK ORCHID
4 Inch - 100 mm Universal Budget Silent Fan Filter Duct Kit for Grow Tent Quiet Operation Inline Extractor Fan Air Diffuser Hydroponic Carbon Filter Flexible Ducting Smell Odor Temperature
Why We Love It
  • Powerful and efficient performance.
  • Ideal for air intake.
  • Perfect for air extraction.
Main Highlights
  • Compact size: 250x190x205mm, ideal for space-saving installation.
  • 100mm (4") diameter spigot, perfect for connecting to ducting systems.
  • High-performance airflow rate of up to 187 m³/hour for efficient ventilation.
  • Quiet operation with a sound level of just 36 dB(A), ensuring minimal noise disturbance.
  • Genuine mixed flow technology powered by a robust 33W motor, delivering reliable performance.
  • Supplied with a lead and fitted UK plug for easy setup and immediate use.
8.7
Excellent
Amazon Logo
10
8.7
Excellent
AirTech-UK FlowMax Turbo Inline Extractor Fan 100mm / 4 inches - Single Speed Bathroom Extractor Fan without Timer - Silent and High Power Inline Fan - Ceiling, Toilet, Loft installation
AirTech-UK
AirTech-UK FlowMax Turbo Inline Extractor Fan 100mm / 4 inches - Single Speed Bathroom Extractor Fan without Timer - Silent and High Power Inline Fan - Ceiling, Toilet, Loft installation
Free Shipping
Why We Love It
  • Reliable with powerful airflow.
  • Silent yet effective operation.
  • Effortless installation process.
Main Highlights
  • Reliable Performance: With a power of 40W, electric current of 0.14A, voltage of 220V/50Hz, and a speed of 2600RPM, this single-speed fan delivers stable operation and efficient airflow.
  • Powerful : Experience a higher wind volume upto 310m3/h with a noise of 34dB thanks to the reasonable design of wind blades and flow channels.
  • High-Quality Construction: CE Rated with IP44 crafted from durable ABS engineering plastic, this extractor fan guarantees long-lasting performance and a beautiful appearance.
  • Efficient Ventilation: Effectively removes moisture, odors, and pollutants, ensuring a fresh and healthy atmosphere in your bathroom or other spaces.
  • Easy Installation: Designed for hassle-free setup, this fan can be installed quickly in various locations including homes, shopping malls, restaurants, hotels, and entertainment venues providing instant ventilation benefits.
8.7
Excellent
Amazon Logo