
I tried world's thinnest vacuum at Dyson's labs – skinny ‘PencilVac' is the SAS of cleaning gear with three killer perks
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AM I really looking forward to cleaning?
Dyson has achieved two impossible feats: making me thrilled about the idea of tidying the floor, and inventing the world's slimmest vacuum. I'm not sure which is more impressive.
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10
I tried out the impossibly thin PencilVac at Dyson's Malmesbury labs
Credit: Sean Keach
10
Dyson mocked up a miniature assault course for PencilVac testing
Credit: Sean Keach
10
The Sun's tech editor Sean Keach was decked out in proper testing gear for the occasion
Credit: Sean Keach
It's called the PencilVac, and I've had a go with it behind closed doors at Dyson's Oxfordshire labs.
Before I even grabbed the thing, I was blown away. Surely this is just a broom in disguise? Is Sir James Dyson having me on?
It measures a frankly ludicrous 38mm across. That's about three Dairy Milk bars stacked on top of each other.
BIN-CREDIBLE!
All of the usual Dyson tech – the batteries, bin, and motor – has been crammed into the handle.
So you've got battery cells at the top, followed by the computer system, then a shrunken motor that's Dyson's fastest yet.
Next comes the bin, which uses a new compression system to fit five times more dust than its apparent 0.08-litre capacity.
After all, Dyson tells me that most of a 'full' bin is usually air – so there's plenty of room for squashing.
Then there's a dust separation mechanism, brush bars, and a Fluffycones cleaner head with a cone design that shifts long hair off to the side – so it can be sucked back up instead of requiring you to cut it out with scissors.
You don't see most of this, of course. PencilVac just looks like a Dyson that's been hitting the treadmill.
I'LL BE...VAC
Naturally it all sounds like a vacuum cleaning dream, so I grab the handle and away I go.
Watch Sir James Dyson unveil secret PencilVac, world's slimmest vacuum cleaner
10
You'd think the PencilVac was a broom if you squinted
Credit: Dyson
10
The bin for dust and debris is built right into the handle's lower half
Credit: Dyson
It's feathery light and easy to manoeuvre.
Dyson has built a kind of vacuum cleaning assault course for me that I whizz along effortlessly. I suspect my success is down to the gadget's hi-tech design and not my own cleaning skill – but they don't crush my dreams.
This course has straights and hairpin bends – the Nürburgring of vacuuming.
And at the end is a low shelf that I drop straight under. This thing lays almost flat – which is no surprise, given that is pretty much is flat.
DYSON PENCILVAC – THE TECH SPECS
Here's what you need to know...
Size: 38mm x 226mm x 1,160mm (W x L x H)
Weight: 1.8 kilos
Motor: Dyson Hyperdymium 140k motor
Motor RPM: 140,000
Filtration: Up to 99.99% (dow to 0.3 microns)
Runtime: Up to 30 minutes
Charge time: Four hours
Cleaner Head: Fluffycones cleaner head (for detangling long hair and to-edge cleaning)
Accessories: Rotating combi-crevice tool / conical hair screw for mattresses and stairs / magnetic floor-charging dock
Picture Credit: Dyson
10
There's even room for a computer system with a built-in display
Credit: Sean Keach
10
The PencilVac is built for manoeuvrability – and it really works
Credit: Sean Keach
It feels like a tactical weapon: the sort of thing that SAS squaddies would use if dust mites were the baddies.
Helping this image is a built-in laser that exposes dirt and debris. It's the vacuuming equivalent of night vision goggles and a red-dot sight.
I dart between objects with stunning agility. I was born to do this.
The room fades away. I daydream about running off with it, and living out my days as a kind of vacuuming sensei, cleaning the most complicated floor-spaces I can find.
But I can't become Dyson's Mr Miyagi just yet, because the PencilVac isn't out until 2026, and still doesn't have a UK price.
SIR JAMES DYSON SPEAKS TO THE SUN
Here's what famed British inventor Sir James Dyson told The Sun's Sean Keach...
Does PencilVac mark the beginning of a whole new era for vacuum cleaner design?
Yes, it's a reinvention of the format of the vacuum cleaner – our third reinvention in fact!
We started off by removing the bag to ensure vacuums didn't lose suction.
Then we pioneered the simplicity and ease of cleaning with really powerful battery-powered cordless vacuums, which were lighter and much easier to use.
Now, with the Dyson PencilVac, we're taking it a stage further, pioneering a new way to clean.
All the technology is contained in a very slim handle that is just 38mm in diameter. The new Fluffycones cleaner head floats across floors making it very manoeuvrable as you clean; all while it detangles long hair, so you don't have to worry about that.
A vacuum cleaner this thin must have seemed impossible for years – when did you first realise it was possible to actually manufacture a working device like this?
When something seems impossible, it makes us as engineers want to solve it all the more! Especially if people say, 'It can't be done.'
I've wanted to make a vacuum like the Dyson PencilVac for many years. But it required us to miniaturise everything about the product – which is a huge task.
The diameter of our hair tools was the inspiration. Through lots of research, we realised that 38mm is the optimal size for most people to hold, and so this was the diameter chosen for our hair tools like the Supersonic hair dryer and Airwrap multi-styler and dryer.
In order to fit it in the handle of the machine, we had to reengineer every component of the motor – down to the micron – while increasing its speed to 140,000RPM and maximising its power density for high-performance.
It was clear that we couldn't use cyclones for the dust separation, because they were too big for the 38mm diameter, so we had to develop something entirely new. The new slim, in-line format meant we could use dust compression technology in a small diameter, but over a long area to maximise the bin capacity, all while ensuring effective filtration performance and no loss of suction.
What was the biggest challenge to overcome in building the PencilVac?
Developing the new Fluffycones cleaner head was perhaps the greatest challenge we faced – but also the most rewarding! We wanted to develop a cleaner head that would detangle hair, clean right up to skirting boards, and pick up dust and debris in all directions – a cleaner head that would solve many frustrations with existing cleaner heads.
The new Fluffycones cleaner head features four conical brush bars. The challenge was engineering the drive system to ensure that all four cones, which are powered by two motors and four epicyclic gear boxes, spin at the same, consistent speed while maintaining its 7.5-degree angle for optimal pick-up performance. I'm delighted not only that we managed this, but in doing so made a vacuum cleaner which is a joy to use.
Who do you see PencilVac being the perfect vacuum cleaner for?
Once you've used it, and felt it float effortlessly across the floor, you'll realise it's unlike anything that has come before. It may be the only vacuum cleaner you need!
Picture Credit: Dyson
10
The new Fluffycones head has a conical shape that pushes long hairs off to the side so they can be sucked back up immediately – so you don't have to cut them out manually with scissors
CLEAN-UP TIME
It's a thrilling bit of kit, which might be the first time that's ever been said about a vacuum cleaner.
This thing is easy to use, takes up very little space, and gets into difficult nooks and crannies. It feels purpose-built for British homes.
It'll make cleaning under and around the dining table an absolute breeze. A treat, even.
It really is the SAS of cleaning gear: it's light and agile for tactical cleaning operations, it dispatches long hairs with ruthless efficiency, and it has whole-house endurance with a 30-minute runtime.
I can already see myself arguing with my wife over who gets to use the PencilVac – but no matter who does, everyone's a winner. Maybe that's the real Dyson magic.
10
I was one of the first Brits to test out the Dyson PencilVac
Credit: Sean Keach
10
Dual lasers allow you to easily see dirt and debris on your floor
Credit: Sean Keach
Read iconic British inventor Sir James Dyson's exclusive comment piece for The Sun here.
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The Sun
9 hours ago
- The Sun
I tried world's thinnest vacuum at Dyson's labs – skinny ‘PencilVac' is the SAS of cleaning gear with three killer perks
Sean Keach, Head of Technology and Science Published: Invalid Date, AM I really looking forward to cleaning? Dyson has achieved two impossible feats: making me thrilled about the idea of tidying the floor, and inventing the world's slimmest vacuum. I'm not sure which is more impressive. 10 It's called the PencilVac, and I've had a go with it behind closed doors at Dyson's Oxfordshire labs. Before I even grabbed the thing, I was blown away. Surely this is just a broom in disguise? Is Sir James Dyson having me on? It measures a frankly ludicrous 38mm across. That's about three Dairy Milk bars stacked on top of each other. BIN-CREDIBLE! All of the usual Dyson tech – the batteries, bin, and motor – has been crammed into the handle. So you've got battery cells at the top, followed by the computer system, then a shrunken motor that's Dyson's fastest yet. Next comes the bin, which uses a new compression system to fit five times more dust than its apparent 0.08-litre capacity. After all, Dyson tells me that most of a 'full' bin is usually air – so there's plenty of room for squashing. Then there's a dust separation mechanism, brush bars, and a Fluffycones cleaner head with a cone design that shifts long hair off to the side – so it can be sucked back up instead of requiring you to cut it out with scissors. You don't see most of this, of course. PencilVac just looks like a Dyson that's been hitting the treadmill. I'LL Naturally it all sounds like a vacuum cleaning dream, so I grab the handle and away I go. Watch Sir James Dyson unveil secret PencilVac, world's slimmest vacuum cleaner 10 It's feathery light and easy to manoeuvre. Dyson has built a kind of vacuum cleaning assault course for me that I whizz along effortlessly. I suspect my success is down to the gadget's hi-tech design and not my own cleaning skill – but they don't crush my dreams. This course has straights and hairpin bends – the Nürburgring of vacuuming. And at the end is a low shelf that I drop straight under. This thing lays almost flat – which is no surprise, given that is pretty much is flat. DYSON PENCILVAC – THE TECH SPECS Here's what you need to know... Size: 38mm x 226mm x 1,160mm (W x L x H) Weight: 1.8 kilos Motor: Dyson Hyperdymium 140k motor Motor RPM: 140,000 Filtration: Up to 99.99% (dow to 0.3 microns) Runtime: Up to 30 minutes Charge time: Four hours Cleaner Head: Fluffycones cleaner head (for detangling long hair and to-edge cleaning) Accessories: Rotating combi-crevice tool / conical hair screw for mattresses and stairs / magnetic floor-charging dock Picture Credit: Dyson 10 It feels like a tactical weapon: the sort of thing that SAS squaddies would use if dust mites were the baddies. Helping this image is a built-in laser that exposes dirt and debris. It's the vacuuming equivalent of night vision goggles and a red-dot sight. I dart between objects with stunning agility. I was born to do this. The room fades away. I daydream about running off with it, and living out my days as a kind of vacuuming sensei, cleaning the most complicated floor-spaces I can find. But I can't become Dyson's Mr Miyagi just yet, because the PencilVac isn't out until 2026, and still doesn't have a UK price. SIR JAMES DYSON SPEAKS TO THE SUN Here's what famed British inventor Sir James Dyson told The Sun's Sean Keach... Does PencilVac mark the beginning of a whole new era for vacuum cleaner design? Yes, it's a reinvention of the format of the vacuum cleaner – our third reinvention in fact! We started off by removing the bag to ensure vacuums didn't lose suction. Then we pioneered the simplicity and ease of cleaning with really powerful battery-powered cordless vacuums, which were lighter and much easier to use. Now, with the Dyson PencilVac, we're taking it a stage further, pioneering a new way to clean. All the technology is contained in a very slim handle that is just 38mm in diameter. The new Fluffycones cleaner head floats across floors making it very manoeuvrable as you clean; all while it detangles long hair, so you don't have to worry about that. A vacuum cleaner this thin must have seemed impossible for years – when did you first realise it was possible to actually manufacture a working device like this? When something seems impossible, it makes us as engineers want to solve it all the more! Especially if people say, 'It can't be done.' I've wanted to make a vacuum like the Dyson PencilVac for many years. But it required us to miniaturise everything about the product – which is a huge task. The diameter of our hair tools was the inspiration. Through lots of research, we realised that 38mm is the optimal size for most people to hold, and so this was the diameter chosen for our hair tools like the Supersonic hair dryer and Airwrap multi-styler and dryer. In order to fit it in the handle of the machine, we had to reengineer every component of the motor – down to the micron – while increasing its speed to 140,000RPM and maximising its power density for high-performance. It was clear that we couldn't use cyclones for the dust separation, because they were too big for the 38mm diameter, so we had to develop something entirely new. The new slim, in-line format meant we could use dust compression technology in a small diameter, but over a long area to maximise the bin capacity, all while ensuring effective filtration performance and no loss of suction. What was the biggest challenge to overcome in building the PencilVac? Developing the new Fluffycones cleaner head was perhaps the greatest challenge we faced – but also the most rewarding! We wanted to develop a cleaner head that would detangle hair, clean right up to skirting boards, and pick up dust and debris in all directions – a cleaner head that would solve many frustrations with existing cleaner heads. The new Fluffycones cleaner head features four conical brush bars. The challenge was engineering the drive system to ensure that all four cones, which are powered by two motors and four epicyclic gear boxes, spin at the same, consistent speed while maintaining its 7.5-degree angle for optimal pick-up performance. I'm delighted not only that we managed this, but in doing so made a vacuum cleaner which is a joy to use. Who do you see PencilVac being the perfect vacuum cleaner for? Once you've used it, and felt it float effortlessly across the floor, you'll realise it's unlike anything that has come before. It may be the only vacuum cleaner you need! Picture Credit: Dyson 10 CLEAN-UP TIME It's a thrilling bit of kit, which might be the first time that's ever been said about a vacuum cleaner. This thing is easy to use, takes up very little space, and gets into difficult nooks and crannies. It feels purpose-built for British homes. It'll make cleaning under and around the dining table an absolute breeze. A treat, even. It really is the SAS of cleaning gear: it's light and agile for tactical cleaning operations, it dispatches long hairs with ruthless efficiency, and it has whole-house endurance with a 30-minute runtime. I can already see myself arguing with my wife over who gets to use the PencilVac – but no matter who does, everyone's a winner. Maybe that's the real Dyson magic. 10 10


Scottish Sun
9 hours ago
- Scottish Sun
I tried world's thinnest vacuum at Dyson's labs – skinny ‘PencilVac' is the SAS of cleaning gear with three killer perks
Click to share on X/Twitter (Opens in new window) Click to share on Facebook (Opens in new window) AM I really looking forward to cleaning? Dyson has achieved two impossible feats: making me thrilled about the idea of tidying the floor, and inventing the world's slimmest vacuum. I'm not sure which is more impressive. Sign up for Scottish Sun newsletter Sign up 10 I tried out the impossibly thin PencilVac at Dyson's Malmesbury labs Credit: Sean Keach 10 Dyson mocked up a miniature assault course for PencilVac testing Credit: Sean Keach 10 The Sun's tech editor Sean Keach was decked out in proper testing gear for the occasion Credit: Sean Keach It's called the PencilVac, and I've had a go with it behind closed doors at Dyson's Oxfordshire labs. Before I even grabbed the thing, I was blown away. Surely this is just a broom in disguise? Is Sir James Dyson having me on? It measures a frankly ludicrous 38mm across. That's about three Dairy Milk bars stacked on top of each other. BIN-CREDIBLE! All of the usual Dyson tech – the batteries, bin, and motor – has been crammed into the handle. So you've got battery cells at the top, followed by the computer system, then a shrunken motor that's Dyson's fastest yet. Next comes the bin, which uses a new compression system to fit five times more dust than its apparent 0.08-litre capacity. After all, Dyson tells me that most of a 'full' bin is usually air – so there's plenty of room for squashing. Then there's a dust separation mechanism, brush bars, and a Fluffycones cleaner head with a cone design that shifts long hair off to the side – so it can be sucked back up instead of requiring you to cut it out with scissors. You don't see most of this, of course. PencilVac just looks like a Dyson that's been hitting the treadmill. I'LL Naturally it all sounds like a vacuum cleaning dream, so I grab the handle and away I go. Watch Sir James Dyson unveil secret PencilVac, world's slimmest vacuum cleaner 10 You'd think the PencilVac was a broom if you squinted Credit: Dyson 10 The bin for dust and debris is built right into the handle's lower half Credit: Dyson It's feathery light and easy to manoeuvre. Dyson has built a kind of vacuum cleaning assault course for me that I whizz along effortlessly. I suspect my success is down to the gadget's hi-tech design and not my own cleaning skill – but they don't crush my dreams. This course has straights and hairpin bends – the Nürburgring of vacuuming. And at the end is a low shelf that I drop straight under. This thing lays almost flat – which is no surprise, given that is pretty much is flat. DYSON PENCILVAC – THE TECH SPECS Here's what you need to know... Size: 38mm x 226mm x 1,160mm (W x L x H) Weight: 1.8 kilos Motor: Dyson Hyperdymium 140k motor Motor RPM: 140,000 Filtration: Up to 99.99% (dow to 0.3 microns) Runtime: Up to 30 minutes Charge time: Four hours Cleaner Head: Fluffycones cleaner head (for detangling long hair and to-edge cleaning) Accessories: Rotating combi-crevice tool / conical hair screw for mattresses and stairs / magnetic floor-charging dock Picture Credit: Dyson 10 There's even room for a computer system with a built-in display Credit: Sean Keach 10 The PencilVac is built for manoeuvrability – and it really works Credit: Sean Keach It feels like a tactical weapon: the sort of thing that SAS squaddies would use if dust mites were the baddies. Helping this image is a built-in laser that exposes dirt and debris. It's the vacuuming equivalent of night vision goggles and a red-dot sight. I dart between objects with stunning agility. I was born to do this. The room fades away. I daydream about running off with it, and living out my days as a kind of vacuuming sensei, cleaning the most complicated floor-spaces I can find. But I can't become Dyson's Mr Miyagi just yet, because the PencilVac isn't out until 2026, and still doesn't have a UK price. SIR JAMES DYSON SPEAKS TO THE SUN Here's what famed British inventor Sir James Dyson told The Sun's Sean Keach... Does PencilVac mark the beginning of a whole new era for vacuum cleaner design? Yes, it's a reinvention of the format of the vacuum cleaner – our third reinvention in fact! We started off by removing the bag to ensure vacuums didn't lose suction. Then we pioneered the simplicity and ease of cleaning with really powerful battery-powered cordless vacuums, which were lighter and much easier to use. Now, with the Dyson PencilVac, we're taking it a stage further, pioneering a new way to clean. All the technology is contained in a very slim handle that is just 38mm in diameter. The new Fluffycones cleaner head floats across floors making it very manoeuvrable as you clean; all while it detangles long hair, so you don't have to worry about that. A vacuum cleaner this thin must have seemed impossible for years – when did you first realise it was possible to actually manufacture a working device like this? When something seems impossible, it makes us as engineers want to solve it all the more! Especially if people say, 'It can't be done.' I've wanted to make a vacuum like the Dyson PencilVac for many years. But it required us to miniaturise everything about the product – which is a huge task. The diameter of our hair tools was the inspiration. Through lots of research, we realised that 38mm is the optimal size for most people to hold, and so this was the diameter chosen for our hair tools like the Supersonic hair dryer and Airwrap multi-styler and dryer. In order to fit it in the handle of the machine, we had to reengineer every component of the motor – down to the micron – while increasing its speed to 140,000RPM and maximising its power density for high-performance. It was clear that we couldn't use cyclones for the dust separation, because they were too big for the 38mm diameter, so we had to develop something entirely new. The new slim, in-line format meant we could use dust compression technology in a small diameter, but over a long area to maximise the bin capacity, all while ensuring effective filtration performance and no loss of suction. What was the biggest challenge to overcome in building the PencilVac? Developing the new Fluffycones cleaner head was perhaps the greatest challenge we faced – but also the most rewarding! We wanted to develop a cleaner head that would detangle hair, clean right up to skirting boards, and pick up dust and debris in all directions – a cleaner head that would solve many frustrations with existing cleaner heads. The new Fluffycones cleaner head features four conical brush bars. The challenge was engineering the drive system to ensure that all four cones, which are powered by two motors and four epicyclic gear boxes, spin at the same, consistent speed while maintaining its 7.5-degree angle for optimal pick-up performance. I'm delighted not only that we managed this, but in doing so made a vacuum cleaner which is a joy to use. Who do you see PencilVac being the perfect vacuum cleaner for? Once you've used it, and felt it float effortlessly across the floor, you'll realise it's unlike anything that has come before. It may be the only vacuum cleaner you need! Picture Credit: Dyson 10 The new Fluffycones head has a conical shape that pushes long hairs off to the side so they can be sucked back up immediately – so you don't have to cut them out manually with scissors CLEAN-UP TIME It's a thrilling bit of kit, which might be the first time that's ever been said about a vacuum cleaner. This thing is easy to use, takes up very little space, and gets into difficult nooks and crannies. It feels purpose-built for British homes. It'll make cleaning under and around the dining table an absolute breeze. A treat, even. It really is the SAS of cleaning gear: it's light and agile for tactical cleaning operations, it dispatches long hairs with ruthless efficiency, and it has whole-house endurance with a 30-minute runtime. I can already see myself arguing with my wife over who gets to use the PencilVac – but no matter who does, everyone's a winner. Maybe that's the real Dyson magic. 10 I was one of the first Brits to test out the Dyson PencilVac Credit: Sean Keach 10 Dual lasers allow you to easily see dirt and debris on your floor Credit: Sean Keach Read iconic British inventor Sir James Dyson's exclusive comment piece for The Sun here.


The Sun
15 hours ago
- The Sun
I'm beating the heat with phone-controlled Dyson fan – sleep mode is great but best perk has nothing to do with cooling
I JUST visited Dyson's website and it told me 1,600 people were also looking at the same fan I've been trying out. I'm not surprised: it's absolutely baking this week and the weekend is only going to be hotter – so I'm thrilled I've got the Dyson Purifier Hot+Cool Formaldehyde pointed directly at my face. 10 The name is a mouthful admittedly, but don't let that put you off. This posh fan is an elite bit of cooling gear, and would probably be better suited on a spaceship than my desk. It cools you down, obviously. You'd expect that for £699.99. But it does so much more. Somehow, I'm convinced it's absolutely worth the money – but first, let's talk about how it looks. DYSON HP09 DESIGN – THE LOOKS This is one of Dyson's quintessential bladeless fans. It's the classic design of legendary inventor Sir James Dyson, who recently spoke to The Sun about ambition and the future of Britain. They're a brainy lot at Dyson HQ. To an observer, there are no moving parts. No whirring blades that risk slicing a fingertip off (and it doesn't make that whoosh-whoosh-whoosh noise either). There is a blade-like impeller in the base that draws air in and accelerates it, pushing it out to create a cooling airflow. But you don't see any of that. You just feel wondrously cold. The one I've been trying has a white and gold trim that should suit most rooms. It's not gaudy – but it looks fancy enough to justify the price tag. The squat design means that it's fine to live on the floor, but can also sit on a desk if you prefer. Dyson Purifier for £699.99 – buy here Watch Sir James Dyson unveil secret PencilVac, world's slimmest vacuum cleaner And it can oscillate up to a whopping 350 degrees, so you can send a breeze to everyone in the room. Or just can have it locked to cool you and you alone. The choice is yours. All in all, it's especially pretty and, as a bonus, your pals will be impressed by (and envious of) your luxe gadget. Especially in the heat. DYSON HP09 PERFORMANCE – HOT OR COLD? This fan heats and cools. The clue is in the name: Hot+Cool. It does both very well, though I think its real benefit is heating. Cooling is fine, and works best when the fan is pointed directly at you. 10 But the heating function can really warm up an entire room very quickly, even if you're not in the line of fire. Some Dyson fans only cool, so having one that does both massively increases the value for money. After all, you can use it all year round. The cooling really does work, even when it's not at max power. And its reach is impressive – I can sit across the room and feel the breeze. It's not particularly loud unless you put it on power level 10, and even then it's not awful. You can easily have a conversation over it. I can sleep through it at max power too. But for light sleepers, there's a night mode that dims the built-in display and lets it run especially quietly. That's probably the best way to use it, especially if you're sharing a bed and value your relationship. DYSON HP09 FEATURES – THE BRAINS The Dyson comes with a remote control, which is a handy way to control fan speed, cooling power, and rotation. But I prefer using the app, which is free to download and has all of the same buttons. It's better because I always have my phone, but I'm not always with the remote. And if I've forgotten to turn it off before I go out, I can easily check on the app and shut it down. DYSON HP09 PURIFICATION – THE REAL PERK What I've completely avoided talking about up to this point is the purification. Why? Because I'm saving the best until last. The real perk of the fan isn't the heating or cooling – but its ability to preserve your life by scrubbing the air of pollutants. This fan comes with a series of filters (you snap them in during the 60-second setup) that snag all kind of nasties that would otherwise be entering your lungs. I don't know about you, but I quite like my respiratory system. 10 All of this can be monitored inside the app I was talking about earlier. It shows exactly how polluted the room is (and by what – down to specifics, including dreaded formaldehyde) and you can watch the levels go down as the fan works its magic. You can also see air quality reports on the fan's built-in display, but the screen gives a much more detailed view. Heating and cooling is fine, but it's hard to put a price on your health. Sure, you're paying a lot. You can get fans for significantly cheaper. If you're on a budget, don't buy this. But if you've got the cash to spare and want a super fan, you can't go wrong with this model. The filters will last about a year, and you'll get an alert when it's time to change them. And they promise to remove 99.95% of particles down to a shockingly tiny 0.1 microns. That means you're waving goodbye to mould spores, allergens, bacteria, viruses, and (as the name suggests) irritating formaldehyde, which can come from paint, furniture, carpets, tech, and more. You might not "see" the benefits, but having the peace of mind that you're not breathing in rubbish will help you sleep easier. So will the fan, though. Check out The Sun's best fans guide and read the Dyson Hot+Cool review by The Sun's Shopping team.