Dyson Hot+Cool HF1: two-minute review

The Dyson Hot+Cool HF1 is a sleek and smart fan heater with the bladeless and aesthetically pleasing design we expect to see from the brand.

With a premium list price of £399.99, the Dyson Hot+Cool HF1 can be found at Dyson and a few other retailers. Sadly, it’s only available in the UK at the time of publishing, but I’ll provide an update if it ever makes its way off the island.

The HF1 offers ten fan speeds, three oscillation options of up to 70 degrees, a heater that can kick out up to 90ºF / 32ºC, and, most excitingly, some desirable smart features.

During testing, I found the HF1 to be very efficient in both Cool and Hot modes. The lowest setting delivered a delicately cooling breeze to me as I sat on my couch six feet away.

There are plenty of ways to control the HF1, with a few onboard controls, a remote, and the MyDyson app, which gave me access to the whole suite of settings and features.

I could perform most actions with the remote, but its communication with the HF1 was a bit patchy at times. The MyDyson app made controlling the HF1 delightfully easy and offered me a wider range of timer options, as well as scheduling, historical ambient temperature data, and, pleasingly, the option to turn on heat mode remotely so I could return to a warm living room.

The fan’s volume was perfectly acceptable and on par with most of the similar fans I’ve tested. Sleeping with the HF1 a few feet from the bed was a smooth ride, for the most part. However, when it came to using Hot mode, I found that it would go through a period of being particularly noisy for a few moments as it got up to temperature, which it would do whenever the ambient temperature dropped below the target I’d set.

This wasn’t so bad in the daytime, but as one of its selling points is that you can use it in your bedroom overnight to keep the temperature at a desirable level, it’s worth bearing in mind if you’re a light sleeper.

If you have children or inquisitive pets, it’s also worth noting that the metallic edging at the front of the air purifier can get very hot very quickly, and that the child lock only applies to the onboard controls. So if you have a rampaging toddler or a clumsy cat, this could potentially prove inconvenient.

Overall, though, the Hot+Cool HF1 is a satisfyingly efficient fan heater. While it has a high price tag, it’s worth it for the performance and convenience, especially with those clever smart features.

If you’d like to explore more options, our guide to the best fans has our top recommendations.

Dyson Hot+Cool HF1 review: price & availability

• List price: £399.99
• Launch date: October 2025 (UK)
• Availability: UK only at time of publishing

The HF1 is a premium option packed with some fantastic features, but as is often the case with Dyson, it has a premium price tag to match, costing £399.99.

The Dyson Hot+Cool HF1 is currently only available in the UK, and can be purchased from Dyson, Currys, and a few other retailers.

There’s a price difference of £150 between the HF1 and the Dyson Cool CF1, which is actually pretty reasonable considering the addition of Hot mode and the fantastic smart features.

Overall, with its good performance and a number of convenient features, the Dyson Hot+Cool HF1 won’t disappoint if you have the money to spare. However, it’s worth considering the drawbacks I’ve covered in my review to ensure they won’t pose an inconvenience before you stretch your budget.

• Value for money score: 4 / 5

Dyson Hot+Cool HF1 review: specs

Dyson Hot+Cool HF1 review: design and features

• Small and lightweight design, which can be tilted
• The HF1 has 10 fan speeds and outputs temperatures up to 90ºF / 32ºC
• MyDyson app offers extra settings and features, including a pre-heat function

Setting up the Dyson Hot+Cool HF1 was a quick and simple process of attaching the plastic base plate and connecting the HF1 to the MyDyson app.

The Dyson Hot+Cool HF1 is conveniently sized, with a max diameter of 8 inches / 20.4cm once the base is attached; however, at 23 inches / 58.5cm, it might feel a smidge tall for desktop use.

Though it feels a little wrong, as I’m used to using larger-scale formats like the Dyson HP10, it worked perfectly well on the floor. Whether you place it on a tabletop or the floor, the vertical angle of the airflow can be adjusted slightly by shifting the fan’s body backwards or forward to tilt it.

Predictably, the Dyson Hot+Cool HF1 fan features a bladeless design, making it easier to clean and a safer option to bladed fans for those who happen to have curious offspring or pets.

In addition to its 10 fan speeds, the HF1 can oscillate 15, 40, or 70 degrees. Both of these functions can be adjusted via the onboard controls, with a power button/dial combo that can be turned to increase or decrease the fan speed, a button to cycle through oscillation angles, and another button that enables Hot mode.

Hot mode offers a temperature range of up to 90ºF / 32ºC, and the combination of the ceramic heater plates and Air Multiplier technology can apparently increase whole-room temperature by one degree in as little as one hundred seconds.

Like the Dyson Cool CF1, the Hot+Cool HF1 also comes with the standard Dyson-style magnetic remote control, which can be stored on top of the loop amplifier. It features power, oscillation, fan speed, and temperature control buttons, as well as ones to enable sleep mode, set the timer, and engage the child lock.

One advantage the HF1 has over the Cool CF1 is its app integration, which gives access to an advanced range of settings, historical temperature readings, outdoor air quality data, and easy remote control, whether you’re out and about or sitting on the couch. Plus, there’s the option to connect the HF1 to your smart home system, so it can be controlled without lifting a finger.

Perhaps the most exciting aspect of the HF1’s smart capabilities is the ability to preheat a room to your desired temperature, ready for when you return home.

Dyson Hot+Cool HF1 review: performance

• Good performance for its size in both Cool and Hot modes
• Very easy to control, thanks to the MyDyson app
• Quiet overall, but noisy while getting up to temperature in Hot mode

The Dyson Hot+Cool HF1 was simple and straightforward to use, especially when using the app. I often used the remote, too, but there was a bit of a lag whenever I made an adjustment, and the HF1 didn’t register the command at all at times.

When testing from my couch, which was around 6ft / 1.8m away from where I’d placed the HF1, the breeze from speed one wasn’t really detectable when the fan was static, which isn’t really a surprise considering its size. However, when I set it to oscillate at 40 degrees, it was enough to give a gentle and surprisingly effective cooling breeze.

As you’d imagine, the breeze felt a little more prominent with each setting increase, until speed five, when the airflow felt noticeably amplified, and I could hear a quiet windrush past my ears.

The airflow was satisfyingly strong at top speed 10, though it was a little noisy at 45dB from 6 feet away, which was loud enough for me to need to turn the volume up on my TV.

When I measured the sound output of the HF1 in Cool mode from the usual 2ft distance, I found that it produced a similar volume to the Dyson Cool CF1 and the Levoit Circulair. However, its readings of 29dB at speed one, 36dB at speed five, and 50dB at speed ten, conveyed that the HF1 is a whole 10dB louder at its top speed than the Meacofan Sefte 8in.

These aren’t bad volumes, though, with the HF1 operating as quietly as a whisper, to as loud as moderate rainfall when in Cool mode. Some may find the oscillation sound mildly distracting because, as I discovered when reviewing the Cool CF1, it’s reminiscent of the droning of a document scanner. The oscillation itself is only around 28dB, however, and the whirring was subtle enough that I could fall asleep to it.

As it’s getting mighty chilly in the UK as I write this, I’ve been very grateful to have the opportunity to test out Hot mode.

I could easily find out the current room temperature by looking at the fan’s display or checking the app, and the temperature was very straightforward to adjust a degree at a time using the buttons or the slider in the app.

It’s important to note that, while Dyson states that the HF1 is safe for family and pets as there are no exposed heater elements, it would appear this doesn’t eliminate the chance of scalding, as I found that the metallic edging around the air outlets became too hot to touch within just a couple of minutes in Hot mode at 73ºF / 23ºC.

Hot mode starts off noticeably louder than Cool mode. The HF1 is fairly quiet for the first few moments, then quickly ramps up before settling down to a consistent volume. For example, when using Hot mode at fan speed five, the volume quickly rose to 42dB, then settled down to 37dB.

True to Dyson’s claim, the HF1 did increase the temperature by a degree in less than two minutes, though I’m not sure how accurate the temperature reading is when it comes to the ambient temperature across a large room.

As the ambient temperature is monitored for Hot mode, I would have liked to see Dyson use it for an auto function for Cool mode so that it could adjust the fan speed based on how hot the room is, as I loved this feature in the Meacofan Sefte 8in.

Another change I’d love to see is the extension of the child lock beyond the onboard controls, so the remote cannot be used either. Having access to the app should mean this wouldn’t cause inconvenience for adults, but even if not, Dyson could take a leaf out of other brands’ books and assign a combination of buttons to unlock the remote.

When I set the HF1 to sleep mode at bedtime, it turned off the display and reduced the fan speed to four, which has a volume of 29dB, though I could still adjust the speed if required.

Due to the weather in the UK right now, I mostly used the hot mode overnight. Aware that a key feature of the HF1 is that it will start up whenever the temperature drops, and having witnessed how noisy Hot mode can get, I set it to fan speed one to minimize disturbances.

I can recall it waking me up at one point in the early hours of the morning, but it wasn’t loud enough to shock me awake, and I fell back to sleep once it had settled down. It should hopefully be bearable enough for most people, but I definitely wouldn’t recommend it if you’re a particularly light sleeper.

While the hot mode might be good for speedy heating, it would be great if the sleep mode could increase the heat gradually, so there wouldn’t be such a sudden volume increase. It’s also worth noting that the display doesn’t appear to turn off when in sleep mode if you’re using the heat function.

Overall, though, I quite like the Dyson Hot+Cool HF1. I appreciate how no fan speed felt redundant from six feet away, and that it was light enough to relocate without much effort. So, while the HF1 may not be the right fan heater for you if you’re a light sleeper who intends to use Hot mode overnight, for everyone else its smart features, effortless remote control, energy-saving Hot mode, and satisfying airflow make it a great choice.

Should I buy the Dyson Hot+Cool HF1?

Buy it if…

Don’t buy it if…

Dyson Hot+Cool HF1 review: Also consider

How I tested the Dyson Hot+Cool HF1

• I used the Dyson Hot+Cool HF1 in multiple locations
• I explored the features and settings in the MyDyson app
• I evaluated the strength of the airflow and the sound levels

I unboxed the Dyson Hot+Cool HF1, attached its base, and set it up on the MyDyson app. I tested it out on different surface heights, on the floor, and next to my bed. I did most of my testing with the HF1 where I usually place my table fans, about six feet away from my couch and near my bed at nighttime.

I adjusted the settings using the onboard controls, the remote control, and the MyDyson app. In the app, I went through the setup process before exploring the different settings and sections.

I used all the fan speeds in Hot and Cool mode, and measured the sound output. I used it in Hot mode on my bedroom windowsill when I went to bed at night, using the timer so that I didn’t get too toasty after I fell asleep.