Hair dryers are loud. That's just accepted as fact — you switch one on and conversation stops, the dog leaves the room, and anyone still in bed knows exactly what you're doing.

But not all dryers are equally loud. The difference between a cheap AC motor screaming at 88dB and a Dyson humming at 78dB is bigger than those numbers suggest. Decibels work on a logarithmic scale, so a 10dB drop roughly halves the perceived loudness. That's a proper difference.

I've been looking at what makes some dryers quieter than others, and it mostly comes down to one thing: the motor. The type of motor inside your hair dryer determines more about the noise it produces than wattage, speed settings, or any amount of "acoustic engineering" marketing.

Here's what I found across three price points, plus an editorial pick that sits in the sweet spot for most people.

Quick summary: The Dyson Supersonic Nural is the quietest by a clear margin, but it's £400. The ghd Helios (not in our database, but worth knowing about) is the best mid-range quiet option at £130-155. The ghd Air and Remington D3198 are both loud — one's a workhorse, the other's a bargain.

For our full roundup of all the best dryers regardless of noise, see our best hair dryer UK guide.

1. Dyson Supersonic Nural — The Quietest Hair Dryer You Can Buy

Price: ~£400 | Wattage: 1600W | Weight: ~684g | Motor: Digital V9 (110,000rpm)

The Nural is, without question, the quietest hair dryer I've tested. It's not silent — nothing that pushes air at speed can be — but the tone is different. Where a traditional dryer produces a low, grinding roar, the Dyson makes a higher-pitched hum that's less aggressive on the ears.

The V9 digital motor spins at 110,000rpm. That sounds like it should be deafening, but it's the opposite. The ultra-high rotation speed produces sound at a higher frequency, and higher frequencies don't travel through walls and doors as easily as the lower rumble of conventional motors. It also means the motor itself has very little vibration, which cuts out another source of noise.

Dyson rates the Nural at around 78-82dB depending on the speed setting and which attachment you're using. The smoothing nozzle is quieter than the styling concentrator. On the lowest speed setting with a nozzle attached, it's genuinely usable at 6am without causing a domestic incident.

The sensor tech — 40 readings per second to control heat — is a bonus, not the reason you'd buy this for quietness. But it does mean the dryer isn't constantly ramping up and down, which itself reduces noise variation.

The problem is obvious: £400. For a hair dryer. The quietness is real, the engineering is impressive, but the price puts it firmly in "treat yourself" territory.

See the Dyson Supersonic Nural | Read our full Dyson Nural review

2. ghd Helios — Best Mid-Range Quiet Option

Price: ~£130-155 | Wattage: 2200W | Weight: ~780g | Motor: Brushless DC

The Helios isn't in our product database, so I can't link you to a tracked price page. But it deserves a spot here because it hits the sweet spot between noise, performance, and price that the other options miss.

The reason it's quieter than most dryers at this price is the brushless DC motor. Traditional AC motors (like the one in the ghd Air below) use carbon brushes that physically contact a spinning commutator. That friction generates noise and vibration. A brushless DC motor removes those contact points entirely, spinning via electromagnetic fields instead. The result is a smoother, less grating sound.

It's not Dyson-quiet. You'll still hear it through a closed door. But the tone is more of a steady hum than a rough roar, and it doesn't have the harsh edge that makes you wince at high speed. For anyone who wants a noticeably quieter drying experience without spending £400, this is where I'd point you.

At 780g it's not the lightest, but it's manageable. And 2200W means it dries fast — you're not trading speed for the reduced noise.

If you're curious about why motor type matters so much, I've written a deeper breakdown in our AC vs DC motor hair dryer guide.

Read our full ghd Helios review

3. Remington D3198 — Budget Pick (Loud, But Cheap)

Price: ~£25 | Wattage: 2200W | Weight: ~580g | Motor: DC with brushes

Let's be honest: the Remington D3198 isn't a quiet hair dryer. It uses a standard brushed DC motor running at 2200W, and it sounds like what it is — a budget dryer working hard. You'll get the familiar high-volume whirr that makes phone calls impossible and forces you to pause whatever you're watching.

So why is it on a "quiet dryer" list? Because sometimes quiet isn't the priority. The D3198 costs around £25, comes with a diffuser and concentrator nozzle, has ionic conditioning, and does its job well. If you're drying your hair in the bathroom with the door shut and nobody's trying to sleep, the noise level doesn't matter that much.

It's also worth pointing out that at 580g, it's lighter than the ghd Helios and much lighter than the ghd Air. Less weight means less arm fatigue, which is its own kind of comfort even if the noise isn't great.

I'd recommend this if your budget is under £50 and noise is a "nice to have" rather than a requirement. For the full breakdown on this dryer, see our Remington D3198 review.

See the Remington D3198 | More budget options

4. ghd Air — Salon Power, Salon Volume

Price: ~£100-120 | Wattage: 2100W | Weight: ~1540g | Motor: AC (brushed)

The ghd Air is a genuinely good hair dryer. The AC motor is powerful, the 3m cable gives you freedom, and it's built to last. Salons use dryers with AC motors for a reason — they're durable and they push serious airflow.

But it's the loudest dryer on this list. AC motors are inherently noisier than DC or digital alternatives. The brushes, the lower spin speed (which produces a lower-frequency sound that travels further), and the sheer grunt of the motor all contribute to a noise level that sits around 87-90dB on the highest setting.

That's approaching the level where prolonged exposure starts being a concern. Not a health emergency from one drying session, but something to keep in mind if you're using it daily for 15+ minutes.

At 1540g, it's also the heaviest option here by a massive margin. That's nearly three times the weight of the Remington. If you're looking for quiet and comfortable, the ghd Air is neither. If you want raw salon-grade drying power and don't care about noise, it's very good at what it does.

See the ghd Air | Read our full ghd Air review

Noise comparison table

A few things to keep in mind about this table. First, these are approximate figures — actual noise depends on speed setting, distance, attachment, and the room you're in. A tiled bathroom reflects more sound than a carpeted bedroom. Second, the perceived difference between 82dB and 88dB is bigger than it looks. Remember, decibels are logarithmic. A 6dB increase roughly doubles the sound energy.

Why motor type matters more than wattage

There's a common assumption that lower wattage means quieter. It doesn't, at least not directly.

The Dyson Nural runs at 1600W and is the quietest dryer here. The Remington runs at 2200W and is louder, but not by as much as you'd expect given the wattage gap. The ghd Air at 2100W is the loudest despite being lower wattage than the Remington.

What actually drives noise is the motor:

AC motors are the old guard. They spin slower but use brushes that create friction and vibration. The sound they produce is lower-pitched, which feels louder and travels further through walls. They're durable and powerful, which is why salons use them. But quiet they're not.

Brushed DC motors are a step better. They still use brushes, but they tend to be smaller and lighter. The noise is typically a touch less harsh than AC, though it depends on the quality of the build.

Brushless DC motors (like the ghd Helios) remove the brush contact entirely. Less friction means less vibration means less noise. It's a meaningful improvement, and the motors tend to last longer too since there are no brushes wearing down.

Digital motors (Dyson's approach) spin at extreme speeds using pulse technology. The high-frequency sound they produce is less intrusive to human hearing and doesn't penetrate walls as easily. It's a fundamentally different engineering approach that costs a lot more to develop.

For a more detailed comparison of motor types and what they mean for daily use, read our AC vs DC motor guide.

What to look for in a quiet hair dryer

Motor type first. Brushless DC or digital motors are where quiet lives. If the box just says "DC motor" without specifying brushless, assume it has brushes and won't be notably quiet.

Attachments help. A concentrator or smoothing nozzle directs the airflow into a tighter stream. This actually reduces turbulence at the outlet, which can knock a decibel or two off the perceived noise. Diffusers are generally quieter in use too, since they spread the air rather than blasting it.

Lower speed settings. This is the most obvious one, but worth saying: every dryer is quieter on low speed. If noise bothers you, consider a more powerful dryer on a low setting rather than a weak dryer on full blast. You'll get similar drying time with less screaming.

Weight and balance. Not directly related to noise, but relevant to comfort. If you're already concerned about the sensory experience of drying your hair, weight matters too. The Dyson's motor-in-handle design means the head is light and the weight sits in your palm, which is easier on the wrist. See our best lightweight hair dryer UK guide for more on this.

Ionic technology doesn't affect noise, but it does speed up drying time, which means less total exposure to whatever noise the dryer makes. Every dryer on this list has it. Learn more in our ionic hair dryer explainer.

Browse more hair dryer picks

Looking for something specific? We've got guides for fine hair, curly hair, thick hair, and travel. Or browse all our tracked hair dryer prices in the hair dryer shop.

Frequently asked questions

What is the quietest hair dryer you can buy in the UK?

The Dyson Supersonic Nural. Its digital V9 motor spins at 110,000rpm, producing a high-pitched tone that sits above the frequency range most people find irritating. Independent tests put it around 78-82dB depending on the speed setting and attachment used. That's significantly quieter than traditional AC motor dryers which typically sit at 85-90dB.

Why are some hair dryers louder than others?

Motor type is the main factor. AC motors are the loudest because they use brushes that create friction and vibration. Brushless DC motors (like the ghd Helios) are quieter because there's no physical brush contact. Digital motors (like Dyson's V9) are quietest of all — they spin faster but at a higher pitch that's less harsh on the ears. Airflow design, housing insulation and attachment fit also affect noise, but the motor is the biggest variable.

Is the ghd Helios quieter than the ghd Air?

Yes. The ghd Helios uses a brushless DC motor while the ghd Air uses a traditional AC motor. The Helios produces a smoother, lower-pitched hum compared to the Air's louder, rougher tone. In practical terms, the Helios is noticeably less irritating to use, especially during longer drying sessions. It won't be as quiet as a Dyson, but it's a clear step down from the Air in terms of noise.

Can I use a quiet hair dryer early in the morning without waking people up?

Even the quietest hair dryer is still audible through walls. The Dyson Nural on its lowest setting with a smoothing nozzle is about as quiet as hair dryers get — around 78dB. That's roughly the volume of a loud conversation. Behind a closed bathroom door, it probably won't wake a heavy sleeper in another room. But it's not silent. If someone in the next room is a light sleeper, you'll still want to keep the door shut and use the lowest speed setting.

Does lower wattage mean a quieter hair dryer?

Not necessarily. Wattage measures power consumption, not noise output. A 1600W Dyson Nural is quieter than a 2100W ghd Air despite producing comparable airflow, because the motor technology is completely different. A cheap 1200W travel dryer might be quieter simply because it moves less air, but it'll also take twice as long to dry your hair. Motor type matters far more than wattage for noise levels.