Dyson’s Purifier Hot+Cool is three machines in one tall loop: a HEPA air purifier you run all year, a fan for summer and a space heater for winter. The HP1 is the current version, launched in 2025 at $659.99 and now selling for $499.99 at Dyson and on Amazon. That is still several times the price of a good space heater plus a good purifier, so the question is not whether the HP1 works — it does — but whether combining them in one well-designed, app-controlled machine is worth paying for. This review covers how it heats, how well it purifies, what it costs to run and who should buy it.
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The Short Version
Rating: 7.6/10
Best for: People who want one quiet, good-looking machine to purify the air year-round and add heat or a breeze to the room they’re in
Price: $499.99 (launched at $659.99), plus a $79.99 filter each year
Verdict: A genuinely good 3-in-1 that heats a room quickly and cleans the air with a sealed HEPA filter, with an excellent app. But it has fewer sensors than older Dysons, no independent purifier rating, and a separate heater and purifier cost a third as much.
What Is the Dyson Purifier Hot+Cool HP1?
The HP1 is a 30-inch tower with Dyson’s bladeless loop on top. Air is drawn in through a 360-degree filter in the base, cleaned, and pushed out through the loop either as a cooling breeze or, with the heater on, as warm air. It oscillates up to 350 degrees, has 10 fan speeds and a thermostat that switches the heater off when the room reaches the temperature you set. Dyson is clear that the cooling mode is a fan, not air conditioning.
It replaced the Hot+Cool Gen1 (HP10) and sits below the pricier HP2 De-NOx in Dyson’s 2025 lineup. Trusted Reviews summed it up as slightly cheaper but slightly more basic than its predecessors: it measures particles (PM2.5 and PM10) but drops the gas sensors that earlier models had.
Dyson HP1 Specs
| Dyson Purifier Hot+Cool HP1 | |
|---|---|
| Price | $499.99 (launch price $659.99) |
| Released | 2025 |
| Functions | HEPA purifier, fan, fan heater |
| Filter | Sealed glass HEPA H13 + activated carbon |
| Filter replacement | $79.99, every 12 months |
| Sensors | PM2.5, PM10, temperature |
| Fan | 10 speeds, up to 350° oscillation |
| Thermostat | Yes, pauses heat at set temperature |
| Noise | 63 dB max (Dyson) |
| Smart | MyDyson app, Alexa, Google, Siri; remote |
| Size and weight | 30.1 in tall, 11.7 lb |
| Warranty | 2 years |
Heating: Fast, Even and Thermostat-Controlled
As a heater the HP1 works well for the room you are in. Trusted Reviews measured it taking an office from 15°C to 18°C (59°F to 64°F) in just under six minutes, and Shortlist’s reviewer saw a room go from 15°C to 23°C in about 15 minutes with even heat. Tom’s Guide found it heated quickly and evenly, and the oscillation and directional airflow let you aim warmth at the sofa or desk rather than the ceiling. Once the room hits your target temperature, the heater pauses rather than running flat out.
Keep expectations realistic. Mumsnet’s three-month test concluded that it is not a substitute for central heating; it is best in a well-insulated room or for topping up a cold corner of the house. Dyson does not publish the US model’s heater wattage. Every plug-in heater on a standard US outlet is limited to around 1,500 watts, so the HP1 heats no more cheaply per hour than a basic ceramic heater: at the July 2026 US average electricity price of 18.31 cents per kWh, 1.5 kW costs about 27 cents an hour at full power. Its efficiency advantage is that it heats only the space you are using.
Air Purification: Sealed HEPA, but No Independent Rating
The filter is a combined glass HEPA H13 and activated carbon cartridge, and Dyson seals the whole machine so dirty air cannot bypass it — a detail that matters more than most spec sheets suggest. Dyson says it captures 99.97% of particles down to 0.3 microns. In Trusted Reviews’ smoke test the air sensor returned to safe levels in about 19 minutes, and Tom’s Guide found it good with cooking smells and pet dander. The LCD and the app show particle levels, temperature and filter life in real time.
What is missing is an independent measure of how much air it cleans. Dyson does not publish an AHAM clean air delivery rate (CADR) for the HP1; it uses its own POLAR test instead, which Dyson says better reflects a real room but which cannot be compared with other purifiers. Retailers list a recommended room size of just 73 square feet. By contrast, a $90 Levoit Core 300-P has an AHAM-verified CADR of 143 cubic feet per minute. The HP1 also lacks the gas sensors of earlier models, so it will not tell you about VOCs or nitrogen dioxide, and it has no formaldehyde treatment; that is reserved for the HP2 De-NOx.
App, Controls and Noise
The MyDyson app is the best part of the experience. It shows current and historical air quality, sends monthly reports and filter reminders, and lets you schedule the machine, set a sleep timer from 15 minutes to 9 hours, and choose an oscillation angle of 45, 90, 180 or 350 degrees and drag it to point where you want. It works with Alexa, Google Assistant and Siri, and a small magnetic remote docks on top. Tom’s Guide and Shortlist both found the app occasionally lost its connection, though it reconnected.
Noise is reasonable. Dyson rates it at 63 dB at full speed, and Trusted Reviews measured just under 40 dB at speed 1 and about 44 dB at speed 5. At speed 10 it sounds like a fan, enough that reviewers turned the TV up. Mumsnet noted there is no child lock, which matters on a heater.
What It Really Costs
At $499.99 the HP1 is reasonable for a Dyson but expensive for what it does, and the filter adds $79.99 a year. Dyson’s own site shows a 3.9-star rating from more than 700 owners, and Amazon reviewers are mixed on value, even though most praise its quietness and air cleaning. The comparison that matters:
| Dyson HP1 | Levoit Core 300-P + Lasko heater | |
|---|---|---|
| Price | $499.99 | $89.99 + $71.99 = $161.98 |
| Filter per year | $79.99 | Cheaper Levoit filters |
| Purifier rating | No AHAM CADR | AHAM CADR 143 CFM |
| Heater | Fan heater with thermostat | 1,500 W ceramic tower |
| Cooling fan | Yes | No |
| Smart app | Yes | No |
| Footprint | One tower | Two devices |
The two-device setup cleans air with a published rating and heats just as well for about a third of the price. What you pay the Dyson premium for is design, one footprint, a summer fan, the app and the sealed system.
Pros and Cons
Pros
- Purifier, fan and heater in one stylish tower
- Heats a room quickly and evenly with a thermostat
- Sealed HEPA H13 + carbon filtration
- Excellent MyDyson app with air quality history
- Quiet at low and medium speeds
- 350° oscillation you can aim from the app
Cons
- $499.99 plus a $79.99 filter every year
- No AHAM CADR; small official room size
- Particle sensors only, no gas sensors
- Not a replacement for central heating
- App sometimes loses connection
- No child lock
Alternatives
Dyson Purifier Hot+Cool HP2 De-NOx ($699.95) — The step-up model adds a K-Carbon filter for nitrogen dioxide and a stage that breaks down formaldehyde, with a larger recommended room size. Worth it if you live near busy roads or are sensitive to indoor pollutants.
Dyson Purifier Cool PC1 ($399.99) — The same purifier-fan design without the heater. If you already have heating you are happy with, it saves $100.
Levoit Core 300-P ($89.99) + Lasko ceramic tower heater ($71.99) — The value route: an AHAM-rated purifier and a 1,500-watt heater with oscillation and a remote for about $162 together.
For more heater options, see our guide to the best space heaters.
Who Should Buy the Dyson HP1
Buy it if you want one machine for every season. Purifying all year, cooling in summer and heating in winter from a single tower is the HP1’s real appeal, and it does all three well enough.
Buy it if design and the app matter to you. It looks better than any heater and purifier pair, and the app makes it genuinely easy to live with.
Buy it on sale. At $499.99 it is far more reasonable than at its $659.99 launch price; reviewers consistently advise waiting for a discount.
Skip it if value is the priority. A separate purifier and heater do the core jobs for a third of the price.
Skip it if you need to heat a large or poorly insulated room. It is a room heater, not a central-heating replacement.
Frequently Asked Questions
Is the Dyson Purifier Hot+Cool HP1 worth it?
It is worth it if you want a single, quiet, well-designed machine to purify the air year-round, cool you in summer and heat a room in winter, and you value the app. If you only need heat and clean air, a separate HEPA purifier and space heater cost about a third as much.
How much does it cost to run a Dyson Hot+Cool heater?
Dyson does not publish the US heater wattage, but plug-in heaters on a US outlet are limited to about 1,500 watts. At the July 2026 US average of 18.31 cents per kWh, 1.5 kW costs about 27 cents an hour at full power, and the thermostat pauses heating once the room reaches the set temperature. The filter adds $79.99 a year.
How often do you replace the Dyson HP1 filter?
Dyson recommends replacing the combined HEPA H13 and activated carbon filter every 12 months, or when the machine or app alerts you. A genuine replacement costs $79.99 and the filter is not washable.
What is the difference between the Dyson HP1 and HP2?
The HP2 De-NOx ($699.95) adds a K-Carbon filter that captures nitrogen dioxide and a stage that breaks down formaldehyde, and it is rated for a larger room. The HP1 ($499.99) has HEPA and activated carbon filtration with particle sensors only.
Can the Dyson Hot+Cool heat a whole room?
It heats a single room quickly and evenly: reviewers measured 3°C to 8°C rises in 6 to 15 minutes in offices. It is not a replacement for central heating and works best in well-insulated rooms or for heating the area you are sitting in.
Does the Dyson HP1 have an air conditioner?
No. Dyson states that the cooling mode is a fan, not air conditioning. It moves and purifies air to cool you with a breeze but does not lower the room’s temperature.
Final Verdict
The Dyson Purifier Hot+Cool HP1 is a good 3-in-1 machine that is easy to like and hard to justify on value alone. It heats a room quickly, purifies through a sealed HEPA system, runs quietly at everyday speeds and has the best app in its class. Against that, it costs $499.99 plus $80 a year in filters, has fewer sensors than earlier Dysons and no independent purifier rating.
Rated 7.6 out of 10. Buy it if you want one beautiful machine that handles air quality and comfort all year and you can get it at the $499.99 sale price. If you just want warmth and clean air for the least money, the Levoit and Lasko pair is the smarter buy.