Someone replacing a tired bathroom
Someone replacing a tired bathroom fan on an existing duct, often a Vortice like-for-like, with reviews that mention 10–25 year old units.
Centrifugal fan comparison 2026
The best centrifugal fans, compared.
Top pick: GDSTIME 9733 Best value: NAVESO 97 mm – Best value on a different ASIN, the NAVESO 97 mm at about £12.99. Updated 20 October 2026.
Charlie White (Charlie DIYte)Expert source
A centrifugal fan throws air out of a scroll at higher pressure than an axial propeller fan, which is why UK bathrooms with a long duct use one, and why small side-outlet blowers exist for charcoal and cabinets. Those two groups must not be ranked as one product. England’s Approved Document F table asks for 15 litres per second intermittent extract in a bathroom, 30 or 60 in a kitchen depending on the hood, and the sticker airflow is not the installed test. Someone replacing a tired bathroom fan on an existing duct, often a like-for-like, with reviews that mention 10–25 year old units. Someone in an internal bathroom whose axial fan never cleared steam, who needs pressure or an inline fan and an electrician. The checks before you buy are in the [Centrifugal fan buying guide](/hub/cooling/centrifugal-fan/sub/centrifugal-fan-buying-guide). Surface centrifugal extractor: grille and scroll on the wall or ceiling, 100 mm duct, mains. Inline centrifugal: motor in the duct, not stocked here. Plug-in centrifugal blower: 75, 97 or 120 mm square, side outlet, 12 V, controller, sometimes a steel pipe.
A centrifugal fan throws air out of a scroll at higher pressure than an axial propeller fan, which is why UK bathrooms with a long duct use one, and why small side-outlet blowers exist for charcoal and cabinets.
28 products checked · 57 hrs invested · +14,326 readers
9 of 9: Best centrifugal fans compared
Swipe for more
1-2 of 9Best overall
Best value
6.4/10
9.0/10
8.4/10
8.1/10
8.0/10
7.4/10
7.3/10
5.6/10
5.2/10
∼ £28
∼ £53
∼ £13
∼ £13
∼ £147
∼ £37
∼ £38
∼ £20
∼ £13
5.0(4)
4.5(379)
4.3(9)
4.3(9)
4.1(56)
3.9(26)
3.9(9)
3.0(2)
–
Personal buying guide
Which centrifugal fan fits?
Question 1 of 2
What do you need it to do?
The best centrifugal fans in detail
Our view
The GDSTIME 9733 is a 97 mm class blower at £27.99, with a stated 26.5 CFM at 3500 RPM, 6 W, a 25 dB claim and dual ball bearings, plus a 50,000-hour claim at 25°C. The bullets say a UK-plug controller from 4 to 12 V, screws and a 238 cm AC cable, while the included-components field says no. Dimensions conflict between 97 x 97 x 33 mm in a bullet and 9.7 x 3.3 x 3.3 cm in the spec. The star line is 5.0 from 4 reviews, and the file has no review text, so those stars are a count without a reason you can read. At 550 g it is heavier than the £12.99 97 mm kits, and its 26.5 CFM claim sits below the NAVESO’s 55–58 CFM lines. Treat it cautiously until there is written UK feedback.
Pros
- Stated 26.5 CFM, 6 W and dual ball bearings
- UK-plug controller from 4 to 12 V in the bullets
- 25 dB claim, lower than the other stated noise lines here
- Screws and a long AC cable named in the bullets
Cons
- 5.0 from 4 reviews with no review text
- Included-components field contradicts the bullets
- Dimension lines on the page do not agree
- £27.99 for a lower stated CFM than the £12.99 97 mm kits
Best for: You want the dual-ball 6 W blower and you will ignore a five-star line that has no written reviews.
Less suitable: A buyer comparing on review text, or anyone who needs a stated steel pipe or a bathroom extract.
Specifications
- Model
- GDSTIME 9733
- Brand
- GDSTIME
- Price
- ∼£28
- Customer rating
- 5.0/5(4)
- Type
- Blower
- Supply
- UK plug controller, 12 V fan
- Speed control
- 4–12 V controller
- Stated airflow
- 26.5 CFM
- Noise claim
- 25 dB
- Outlet or duct
- 97 mm (dimensions conflict)
- Mounting
- Screws in the bullet
- Use
- Electronics, BBQ, ventilation (bullets)
Common questions
Does the GDSTIME 9733 include a controller?
The bullets say yes, plus mountings and screws, and a 238 cm AC cable. The included-components field says no.
What airflow and noise are listed?
26.5 cubic feet per minute at 3500 RPM, 6 W, and 25 decibels. Bearings are dual ball, with a 50,000-hour claim at 25°C.
Is the 5.0 rating backed by review text?
The listing line is 5.0 from 4 reviews. The saved listing has no review text, so there is nothing to quote.
Our view
The Vortice Ariett T is a 100 mm bathroom centrifugal extractor listed at £52.50 with 4.5 from 379 amazon.co.uk reviews, the only large review file in this set. The listing states 19.4 litres per second, also written as 70 cubic metres per hour, 40 dB(A) at 3 m, 18 W, IPX4, and a timer from 3 to 20 minutes. That 19.4 l/s figure is the sticker rate, not an installed test, and dividing 18 W by 19.4 l/s is not a Part L specific-fan-power result. The supply line conflicts between hard-wired and a plug, so the page does not settle how it connects. B&Q’s note for model 11976 says the timer needs permanent live, switched live and neutral, and one review says the overrun can be left out if that permanent live is missing, which then means it is no longer a timer fan. Bullets allow wall or ceiling, the spec mounting field says wall, and one review says to set the flap tab before a ceiling fit. In this capture it is the evidenced bathroom pick when you can use the timer and you treat 19.4 l/s as a claim.
Pros
- 4.5 from 379 amazon.co.uk reviews
- Stated 19.4 l/s, 40 dB(A) at 3 m, 18 W and IPX4
- Overrun timer adjustable from 3 to 20 minutes
- 100 mm duct, 1.37 kg, wall or ceiling in the bullets
Cons
- Supply line conflicts between hard-wired and a plug
- Timer needs permanent live, switched live and neutral
- 19.4 l/s is a sticker figure, not an installed airflow test
- Mounting field says wall while a bullet says wall or ceiling
Best for: You want a 100 mm bathroom centrifugal fan with a review file you can read and a timer you can set between 3 and 20 minutes.
Less suitable: A short through-wall run better served by an axial fan, a circuit with no permanent live, or a kitchen duct that needs a higher installed claim.
Specifications
- Model
- Vortice Ariett T
- Brand
- Vortice
- Price
- ∼£53
- Customer rating
- 4.5/5(379)
- Type
- Extractor
- Supply
- 230/240 V, hard-wired or plug (spec
- Speed control
- Overrun timer
- Stated airflow
- 19.4 L/s (70 m³/h)
- Noise claim
- 40 dB(A) at 3 m
- Outlet or duct
- 100 mm, 97 mm spigot
- Timer
- 3–20 minutes
- Mounting
- Wall or ceiling
- IP rating
- IPX4
- Use
- Bathroom
Common questions
What extraction rate does the Vortice Ariett T state?
The listing states 19.4 litres per second, and also 70 cubic metres per hour. That is the sticker figure, not an installed test.
How long is the timer?
The bullet says 3 to 20 minutes. One review says you can wire it without the overrun if you have no permanent live.
Can you mount it on the ceiling?
The bullet says wall or ceiling. One review says to set the flap tab before a ceiling fit. The spec mounting field says wall mount.
Our view
The NAVESO 97 mm blower is listed at £12.99 with 4.3 from 9 amazon.co.uk reviews, a UK plug on the controller, and a 12 V fan that the spec says is not cordless. The bullet says up to 55 CFM at 5500 RPM; the spec says 58 CFM and 53 dB, at 15 W, in a 9.7 x 9.4 x 3.3 cm PBT body weighing 420 g. The controller voltage is printed as 220 V, which is the listing figure rather than a measured correction to the UK 230 V supply. One review says the lead is short and the controller sits too close to the plug, so an extension is needed, while other reviews say it works in daily use. The box includes the blower, the speed controller and an air outlet, not a steel pipe, and the page states no IP rating. In this blower group it is the best value when you want a readable, if small, review file at £12.99.
Pros
- £12.99 with 4.3 from 9 reviews you can read
- UK plug on the controller, variable 3–12 V to a 12 V fan
- Airflow stated as 55 CFM in the bullet and 58 CFM in the spec
- Blower, speed controller and air outlet included
Cons
- One review says the lead is short and the controller sits too close to the plug
- Controller voltage is listed as 220 V
- No steel pipe and no IP rating
- Only nine reviews
Best for: You want a plug-in 97 mm blower for a grill, a cabinet or a similar directed jet, at the low end of this set, with a few written reviews.
Less suitable: A bathroom extract, a job that needs the stated steel pipe, or a buyer who will not use an extension for a short lead.
Specifications
- Model
- NAVESO 97 mm
- Brand
- NAVESO
- Price
- ∼£13
- Customer rating
- 4.3/5(9)
- Type
- Blower
- Supply
- UK plug, 3–12 V to the fan
- Speed control
- Variable 3–12 V
- Stated airflow
- 55 CFM bullet, 58 CFM spec
- Noise claim
- 53 dB
- Outlet or duct
- 97 x 33 mm, air outlet included
- Mounting
- Plug and play
- Use
- Outdoor in the spec; indoor uses.
Common questions
Does the NAVESO blower need batteries?
No. The spec says it is not cordless. A British plug on the controller feeds it from the mains.
What airflow and noise are listed?
The bullet says up to 55 CFM at 5500 RPM. The spec says 58 CFM and 53 decibels.
What do the reviews say about the lead?
One review says the lead is short and the controller sits too close to the plug, so an extension is needed. Other reviews say it works in daily use.
Our view
The Wxeadu 97 mm blower follows the same pattern as the NAVESO: £12.99, 4.3 from 9 amazon.co.uk reviews, a UK-plug controller from 3 to 12 V, and a 12 V fan. The bullet says up to 55 CFM at 5500 RPM; the spec says 58 CFM and 53 dB at 15 W, with an air outlet and the controller in the box. It lists 300 g, against the NAVESO’s 420 g, and the material line disagrees between PBT in a bullet and plastic in the spec. UK review lines in the file are short praise, without the short-lead complaint written on the NAVESO page. The controller voltage is again listed as 220 V, and the page states no IP rating. It is the same class of portable blower for grills, heaters and cabinets, and it is not a second best-value winner.
Pros
- £12.99 with the same 4.3 from 9 as the NAVESO
- UK-plug controller, 3–12 V, air outlet included
- 55 CFM in the bullet and 58 CFM in the spec, at 15 W
- Listed at 300 g
Cons
- UK review lines are only short praise
- Material line disagrees between PBT and plastic
- Controller listed at 220 V, and no IP rating
- No steel pipe
Best for: You want the same 97 mm plug-in blower class as the NAVESO and the lighter listed weight matters to you.
Less suitable: A bathroom extract, or a buyer who wants the value award and a review that names a real fault.
Specifications
- Model
- Wxeadu 97 mm
- Brand
- Wxeadu
- Price
- ∼£13
- Customer rating
- 4.3/5(9)
- Type
- Blower
- Supply
- UK plug, 3–12 V to the fan
- Speed control
- Variable 3–12 V
- Stated airflow
- 55 CFM bullet, 58 CFM spec
- Noise claim
- 53 dB
- Outlet or duct
- 97 x 33 mm, air outlet included
- Mounting
- Portable
- Use
- Indoor, outdoor
Common questions
Does the Wxeadu blower include a speed controller?
Yes. The bullet says a UK plug and control from 3 to 12 V. The spec included line names the controller and an air outlet.
What airflow is listed?
The bullet says up to 55 CFM at 5500 RPM. The spec says 58 CFM and 53 decibels. Wattage is 15 W.
Is it a bathroom extractor?
No. The listing is a portable blower for grills, heaters, cabinets and similar jobs. It states no IP rating.
Our view
The Nuaire Cyfan is a kitchen and bathroom centrifugal extractor at £146.99, with 4.1 from 56 amazon.co.uk reviews and a listed weight of 2.16 kg. The spec is 24 V SELV, with three power levels, a timer, a humidistat and a pullcord, which is a fuller control set than a timer alone. The amazon page does not print a litre figure; reviews in the file cite 30 and 60 litres per second, and the manual states up to 60 l/s installed on a short through-wall duct, so that higher number is not a promise for a long flexible run. The spec says silent running, while reviews split between quiet and a low mode that is still noisy, with full speed called very loud. The amazon IP field is empty, though the manual states IPX4, and display reviews call the fitting fiddly. It belongs in the set when you need SELV and the humidistat, and it is a weak match if you wanted a slim timer fan nearer £50.
Pros
- 24 V SELV with a low-voltage switch noted for splash zones
- Timer, humidistat and pullcord, plus three power levels
- 4.1 from 56 reviews, including comments on a long pipe
- Manual states up to 60 l/s on a short through-wall duct and IPX4
Cons
- £146.99, far above the other extractors in this set
- Amazon listing does not state an airflow figure
- Silent-running claim is disputed; full speed is called very loud
- Fitting is described as fiddly in the review file
Best for: You need a 24 V SELV centrifugal fan with a timer, a humidistat and a pullcord for a kitchen, bathroom, WC or utility.
Less suitable: You want a slim quiet timer fan near £50, or you need a litre figure printed on the amazon.co.uk page.
Specifications
- Model
- Nuaire Cyfan
- Brand
- Nuaire
- Price
- ∼£147
- Customer rating
- 4.1/5(56)
- Type
- Extractor
- Supply
- 24 V SELV, corded
- Speed control
- 3 levels, timer, humidistat, pullcord
- Stated airflow
- n/a
- Noise claim
- Silent running (spec; reviews disagree)
- Outlet or duct
- 100 or 125 mm (reviews); side spigot
- Timer
- Yes
- Mounting
- Wall or window
- Use
- Bathroom, kitchen, WC, utility
Common questions
What voltage is the Nuaire Cyfan?
The spec says 24 V and the specification line says SELV. A bullet mentions a low-voltage switch for splash zones.
Does it have a timer and a humidistat?
Yes. The feature line lists a timer, a humidity sensor and a pullcord. A bullet also calls the humidistat tracker optional.
Is the silent mode quiet?
The spec says silent running. Reviews split: some call it quiet, others say the low mode is still noisy and full speed is very loud.
Our view
The GDSTIME 97 x 33 mm blower is £37.22 with 3.9 from 26 amazon.co.uk reviews, a UK-plug controller listed from 220–230 V, and a 12 V fan. The bullet says about 1150 RPM at 4 V and a strong setting at 12 V; the spec maximum is 4000 RPM, at 6 W and 470 g, with screws in the box. There is no CFM line and no decibel line, so you cannot compare airflow with the NAVESO’s 55–58 CFM claim from the listing itself. Three short UK reviews are in the file: it does the job for the size, the buyer is happy, and one line says very poor without naming a fault. It is the blower with the larger review count in this set, and it is still a weak airflow listing because the number you would use to compare kits is missing, at a higher price than the £12.99 options.
Pros
- 3.9 from 26 reviews, the larger blower sample here
- UK-plug controller from 4 to 12 V, screws included
- Controller voltage line includes 220–230 V
- 6 W and dual-ball PBT construction in the spec
Cons
- No CFM and no decibel figure
- £37.22, the dearest blower in the set
- Written reviews are only three short lines, one with no fault named
Best for: You want this GDSTIME body with a stepless 4–12 V controller and you can accept a missing airflow figure.
Less suitable: A buyer choosing on CFM, or a bathroom extract.
Specifications
- Model
- GDSTIME 97 mm
- Brand
- GDSTIME
- Price
- ∼£37
- Customer rating
- 3.9/5(26)
- Type
- Blower
- Supply
- UK plug, 4–12 V to the fan
- Speed control
- Stepless 4–12 V
- Outlet or duct
- 97 x 33 mm class
- Mounting
- Screws included
- Use
- BBQ, camping, ventilation (bullets)
Common questions
How is this GDSTIME blower powered?
A UK plug controller from 220–230 V feeds the 12 V fan. The bullet says 4 V is about 1150 RPM and 12 V is the strong setting. The spec max is 4000 RPM.
Is an airflow or noise figure listed?
No. The raw spec has wattage, voltage and maximum speed, but no CFM and no decibel line.
What do the written reviews say?
Three short UK reviews are in the file: it does the job for the size, the buyer is happy, and one line says very poor without naming a fault. The star line is 3.9 from 26.
Our view
The Manrose CF200S is the standard 230 V centrifugal extractor for a 100 mm duct, listed at £37.99 with 3.9 from 9 amazon.co.uk reviews. The page gives the voltage and the 100 mm, or 4 inch, outlet, and it does not state an airflow figure, a noise figure, or a timer. Manrose’s own page for this model puts the CF200 range at about 31 litres per second and IPX4, and it lists the timer version as a different model, the CF200T, so an overrun is not part of this listing. One UK review says the fixing screws are not in the box. Nine reviews are too few to treat 3.9 as a settled verdict on a long duct. It suits a like-for-like swap of a standard 100 mm fan that is already switched from elsewhere, and it is the wrong listing if a windowless room needs a timer the page does not include.
Pros
- 230 V centrifugal extractor for a 100 mm duct at £37.99
- Manufacturer page for the CF200 range states about 31 l/s and IPX4
- Standard remote-switching model, so control stays with the existing switch
- Below the timer Vortice on price in this set
Cons
- Amazon listing does not state a timer, airflow, or noise figure
- 3.9 from only 9 reviews
- One UK review says fixing screws are not in the box
Best for: You are replacing a standard 100 mm centrifugal fan and the existing switch already provides the control.
Less suitable: A windowless bathroom that needs a 15-minute overrun, or a buyer who needs the litre figure printed on the amazon.co.uk listing.
Specifications
- Model
- Manrose CF200S
- Brand
- Manrose
- Price
- ∼£38
- Customer rating
- 3.9/5(9)
- Type
- Extractor
- Supply
- 230 V
- Outlet or duct
- 100 mm / 4 inch
Common questions
What duct size is the Manrose CF200S for?
The title says 100 mm, also written as 4 inch. The saved listing does not give a litre-per-second figure.
Does this standard model include a timer?
The listing does not say. The model line is Standard, and the customer question about a timer has no answer in the saved listing.
Are fixing screws in the box?
One UK review says they are not, and that the price should have included them.
Our view
The MAVTON 12032B is a 120 mm blower kit at £19.99, listed at 35.8 CFM and 3000 RPM, 12 W, 56.1 dB and 470 g, with a UK 3-pin plug feeding a 12 V fan. The bullet includes a stainless steel pipe, an adapter, a variable controller and mounting hardware, while the spec included line lists the fan and the controller, and the spec also says two speeds where the comparison line says a variable controller. Of the two reviews, one says nothing electrical worked, even after a fuse and a power-supply swap, and the other used it with a haze machine and notes PC fan mounting holes. A 3.0 from two reviews, with a dead-on-arrival report in half the file, is a thin and poor sample. It is only worth a look if the 120 mm pipe is the part you measured for, and you accept that working evidence is a single review.
Pros
- 120 mm frame with a steel pipe named in the bullet
- UK 3-pin plug and a variable controller
- Stated 35.8 CFM at 3000 RPM
- Mounting hardware listed in the bullet
Cons
- 3.0 from only 2 reviews
- One review says nothing electrical worked
- Included-parts lines and the speed description do not agree
- 56.1 dB claim is the noisier figure in this blower group
Best for: You measured for a 120 mm outlet and you specifically want the steel pipe this bullet describes.
Less suitable: Anyone who needs more than one working review, or a bathroom extract.
Specifications
- Model
- MAVTON 12032B
- Brand
- MAVTON
- Price
- ∼£20
- Customer rating
- 3.0/5(2)
- Type
- Blower
- Supply
- UK 3-pin plug, 12 V fan
- Speed control
- Variable controller (spec says 2 speeds)
- Stated airflow
- 35.8 CFM
- Noise claim
- 56.1 dB
- Outlet or duct
- 120 mm, steel pipe
- Timer
- No
- Mounting
- Hardware included
- Use
- Indoor, outdoor
Common questions
What does the MAVTON 120 mm kit include?
The bullet lists the blower, a stainless steel pipe, an adapter, a variable controller, a UK 3-pin plug and mounting hardware. The spec included line lists the fan and the controller.
What airflow and noise are listed?
35.8 cubic feet per minute at 3000 RPM, and 56.1 decibels. Wattage is 12 W.
What do the two reviews say?
One says nothing electrical worked, even after a fuse and power-supply swap. The other used it with a haze machine and notes PC fan mounting holes.
Our view
The MAVTON 7530B is a 75 mm portable blower kit at £12.99, with a fused UK 3-pin plug, a steel pipe, a variable controller and an 18 CFM claim at 4000 RPM. The fan itself is listed as 12 V and 18 W, with a 33 dB noise claim and a weight of 270 g, and the included line names the blower, the pipe, the controller and the plug, with a one-year warranty. The amazon file has no star line and no review text, so nothing here confirms that the pipe or the controller lasts in use. The listing points it at benches, cars, camping and BBQ fire-starting, and it states no IP rating. Dimensions disagree between the bullet, 75 x 75 x 30 mm, and the spec, 3 x 7.5 x 3 cm. Consider it only when that steel pipe is the reason you are buying and you accept a listing with no reviews.
Pros
- Fused UK 3-pin plug named as BS 1363, with a 12 V fan
- Steel pipe, variable controller and hardware in the kit at £12.99
- Stated 18 CFM at 4000 RPM and a 33 dB claim
- One-year warranty on the listing
Cons
- No star rating and no review text in the file
- No IP rating, so it is not a bathroom extractor
- Dimension lines on the same page do not agree
Best for: You want a small plug-in blower with a stated steel pipe for a bench, a car, camping or lighting charcoal.
Less suitable: A bathroom or kitchen extract, or any job where you need written UK reviews before you buy.
Specifications
- Model
- MAVTON 7530B
- Brand
- MAVTON
- Price
- ∼£13
- Type
- Blower
- Supply
- UK 3-pin plug, 12 V fan
- Speed control
- Variable controller
- Stated airflow
- 18 CFM
- Noise claim
- 33 dB
- Outlet or duct
- 75 mm, steel pipe
- Timer
- No
- Mounting
- Portable
- Use
- Indoor, outdoor
Common questions
Does the MAVTON 7530B have a UK plug?
Yes. The bullet states a fused 3-pin plug and names BS 1363. The fan itself is listed as 12 V.
Is it a bathroom extractor?
No. It is a portable blower kit with a steel pipe, listed for benches, cars, camping and BBQ fire-starting.
What airflow and noise does the listing claim?
18 cubic feet per minute at 4000 RPM, and 33 decibels. There is no star rating in the saved listing.
How we compared
This comparison editorial team. Scores use the amazon.co.uk capture in display/products_display.json and the public figures named in research/research_digest.md. This is not a lab test and not a Building Regulations pass. The set is two jobs. Hard-wired extractors and plug-in 12 V blowers are scored on the same 0–100 scale so one category has one top score, and they are not treated as substitutes.
1
Amazon stars and review volume
40%A large file you can read outranks a perfect score from a handful of blank reviews.
2
Stated specification for the job
25%Airflow or CFM, noise, control, duct or outlet, IP where the product is an extractor, and a UK plug where the product is a blower.
3
Price against that job
20%Extractors are compared with extractors. Blowers are compared with blowers.
4
Listing consistency and review sentiment
15%Conflicts, missing parts, and dead-on-arrival reports reduce the score.
Independent review
Last updated: 20 October 2026
8 sources checked
Centrifugal fan buying guide
Job. Wet-room extract to outside, or a directed 12 V jet. If the second, stop reading Part F and buy a blower. If the first, ignore every blower in this set. Duct. Axial fans are the short through-wall tool.
What is a centrifugal fan?
Surface centrifugal extractor: grille and scroll on the wall or ceiling, 100 mm duct, mains. This set: Vortice Ariett T, Manrose CF200S, Nuaire Cyfan. Inline centrifugal: motor in the duct, not stocked here. Plug-in centrifugal blower: 75, 97 or 120 mm square, side outlet, 12 V, UK-plug controller, sometimes a steel pipe.
Best for
- You want a 100 mm bathroom centrifugal fan with a review file you can read and a timer you can set between 3 and 20 minutes.
- You want a plug-in 97 mm blower for a grill, a cabinet or a similar directed jet, at the low end of this set, with a few written reviews.
Not ideal for
- A short through-wall run better served by an axial fan, a circuit with no permanent live, or a kitchen duct that needs a higher installed claim.
- A bathroom extract, a job that needs the stated steel pipe, or a buyer who will not use an extension for a short lead.
Mistakes to avoid
- 1
Mistakes: treating CFM on a 12
Mistakes: treating CFM on a 12 V blower as a bathroom extract rate; trusting free-air litres after a long flexible duct; fitting a non-timer fan in a windowless room; letting loft duct sag so water runs back; confusing the controller input with the 12 V motor.
- 2
Call an electrician for new bathroom
Call an electrician for new bathroom wiring, zone 1, SELV conversion, a missing permanent live, or any fan that trips or smells hot.
- 3
Call a competent person for fixed wiring
Call a competent person for a building-control airflow test.
What to weigh up
Job
HighJob. Wet-room extract to outside, or a directed 12 V jet. If the second, stop reading Part F and buy a blower. If the first, ignore every blower in this set.
Duct
MediumDuct. Axial fans are the short through-wall tool. Domus describes centrifugal extractors for longer runs, generally up to about 6 m, and inline fans when the motor should sit in the loft. Which? allows axial fans about 2–3 m and says centrifugal fans suit longer ducts. The 2026 Approved Document F, not in force until 24 March 2027, prefers rigid duct and a 2.0 m practical maximum unless you show design evidence.
Which option suits you?
Three typical situations, each with a recommendation from this comparison.
Someone in an internal bathroom
Someone in an internal bathroom whose axial fan never cleared steam, who needs pressure or an inline fan and an electrician.
Barbecue or cabinet cooling
Someone lighting a barbecue or cooling a cabinet, who should buy a £13–£37 blower and keep the lead out of the fire.
Common questions about centrifugal fans
Which centrifugal fan is the top pick?
The top pick is the Vortice Ariett T at about £52.50, score 90. The Vortice Ariett T is a 100 mm bathroom centrifugal extractor listed at £52.50 with 4.5 from 379 amazon.co.uk reviews, the only large review file in this set. The listing states 19.4 litres per second, also written as 70 cubic metres per hour, 40 dB(A) at 3 m, 18 W, IPX4, and a timer from 3 to 20 minutes.
Which centrifugal fan is the best value?
Best value is the NAVESO 97 mm at about £12.99, score 84. It is a different listing from the top pick. The NAVESO 97 mm blower is listed at £12.99 with 4.3 from 9 amazon.co.uk reviews, a UK plug on the controller, and a 12 V fan that the spec says is not cordless.
What extraction rate does the Vortice Ariett T state?
The listing states 19.4 litres per second, and also 70 cubic metres per hour. That is the sticker figure, not an installed test. The Vortice Ariett T is a 100 mm bathroom centrifugal extractor listed at £52.50 with 4.5 from 379 amazon.co.uk reviews, the only large review file in this set.
How long is the timer?
The bullet says 3 to 20 minutes. One review says you can wire it without the overrun if you have no permanent live. The Vortice Ariett T is a 100 mm bathroom centrifugal extractor listed at £52.50 with 4.5 from 379 amazon.co.uk reviews, the only large review file in this set.
Can you mount it on the ceiling?
The bullet says wall or ceiling. One review says to set the flap tab before a ceiling fit. The spec mounting field says wall mount. The Vortice Ariett T is a 100 mm bathroom centrifugal extractor listed at £52.50 with 4.5 from 379 amazon.co.uk reviews, the only large review file in this set.
What should you not assume from the title?
Mistakes: treating CFM on a 12 V blower as a bathroom extract rate; trusting free-air litres after a long flexible duct; fitting a non-timer fan in a windowless room; letting loft duct sag so water runs back; confusing the controller input with the 12 V motor. Call an electrician for new bathroom wiring, zone 1, SELV conversion, a missing permanent live, or any fan that trips or smells hot. Call a competent person for a building-control airflow test.
When should you stop and get help?
Call a competent person for a building-control airflow test. Approved Document F volume 1 (England): intermittent extract 15 l/s bathroom, 30 l/s utility, 6 l/s sanitary accommodation, 30 l/s kitchen if the hood extracts outside and 60 l/s if it does not. Terminal as high as practicable, at most 400 mm below the ceiling. Overrun at least 15 minutes in a room with no openable window. A different comparison is Fan.
Our verdict
The top pick is the Vortice Ariett T at about £52.50. It scores 90, the highest in this set, rated 4.5 from 379 reviews. Best value is the NAVESO 97 mm at about £12.99, a different ASIN, with score 84. Skip the top pick if the limit in its listing is the job you actually have.
Editorial
Editor
Home coolingamazon.co.uk listingsUK plug and voltage
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Updated: 20 October 2026
8 sources checked
Guides to centrifugal fans
Guides on what to look for, how to use a product, and common mistakes.
Centrifugal blower fan for a BBQYou want a small fan to push air at charcoal, or into a cabinet, and the search has mixed that up with a bathroom extractor.Best centrifugal bathroom extractor fanIf you want one evidenced centrifugal bathroom extractor, the top pick in this amazon.co.uk set is the Vortice Ariett T at £52.50. If.Centrifugal fan buying guideYou are looking at a tired bathroom grille and, in the same amazon.co.uk search, a £12.99 plug-in blower. A centrifugal fan buying guide.How to install a centrifugal bathroom fanYou are replacing a centrifugal bathroom fan, or fitting one on a duct that already leaves the room, and you need to know what.Centrifugal vs axial extractor fanYou are choosing how the bathroom fan moves air, before you choose a brand. A centrifugal vs axial extractor fan decision is about duct.
Related comparisons
Sources
Public UK sources named below. amazon.co.uk prices, stars and review counts on these listings were read on 19 October 2026. Page updated 20 October 2026.
- Approved Document F volume 1, 2021 and 2026 PDFs — rates, height, overrun, future duct rules (retrieved 2026-10-20)
- BEAMA Part F bitesize guide — 15 l/s, short flexible duct, 0.5 W/(l/s) (retrieved 2026-10-20)
- Domus Ventilation — axial about 1.5 m, centrifugal about 6 m, Part L note (retrieved 2026-10-20)
- Which? bathroom extractor buying guide — axial versus centrifugal (retrieved 2026-10-20)
- IET Wiring Matters BS 7671 FAQ — IPX4 in zones 1. (retrieved 2026-10-20)
- SELECT bath and shower pocket guide — zone sizes (retrieved 2026-10-20)
- Manrose CF200S page — 110 m³/h, about 31 l/s, IPX4, standard model (retrieved 2026-10-20)
- Nuaire Cyfan manual — 24 V motor, SELV, up to 60 l/s (retrieved 2026-10-20)
Expert source (DIY & tools): Charlie White (Charlie DIYte) (external profile) – public expert commentary used as a research source, not as a contributor to our pages.
This page contains affiliate links to amazon.co.uk (tag pcuk26-21). If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are taken from those listings. We did not run a lab test.