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Dyson Purifier Hot+Cool Review

This is a high-quality device, albeit expensive, that works as both a space heater and air purifier
Dyson Purifier Hot+Cool
Credit: Dyson
Top Pick Award
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Price:   $670 List
Pros:  Built in air purifier, state of the art display and temp monitor
Cons:  Expensive, relies on an external remote
Manufacturer:   Dyson
By Buck Yedor & Austin Palmer  ⋅  Jan 24, 2022
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70
OVERALL
SCORE


RANKED
#2 of 12
  • Personal Heat - 40% 7.0
  • Convenience - 30% 8.0
  • Small Room - 20% 6.5
  • Power Consumption - 10% 5.0

Our Verdict

The Dyson Purifier Hot+Cool is a blend of three different machines. It is a space heater, air purifier, and high-quality fan — all wrapped up into one tight package. The initial cost is high, but you have to remember you are not only purchasing a space heater but an air purifier as well. This is a powerful machine that heats small spaces incredibly well and has the unique ability to oscillate 350 degrees. Based on its versatility and great functionality, this model earned its rightful place as one of our top choices.

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Pros Built in air purifier, state of the art display and temp monitorRaises temperatures quickly, great remote, takes up very little floor spaceFantastic performance, convenient features, fall-over protectionGreat heat output, tip over protection, remote controlCompact, affordable, doubles as a fan
Cons Expensive, relies on an external remoteNo fan-only setting, keeps running when knocked overNo fan-only optionLoud fan, slow to warm upLacks features and settings, mediocre performance
Bottom Line This is a high-quality device, albeit expensive, that works as both a space heater and air purifierIf you need a device that cranks up the heat and has a small footprint and a variety of convenient features, this is a fantastic choiceA solid option that offers exceptional overall performance at a great priceA simple, user-friendly model that performs well but has higher operational costsIf you need a small, barebones space heater on a budget, this is our recommendation
Rating Categories Dyson Purifier Hot+... Lasko Ceramic Digit... Comfort Zone Oscill... Comfort Zone Cerami... Amazon Basics 1500W
Personal Heat (40%)
7.0
9.0
8.0
6.0
6.0
Convenience (30%)
8.0
7.0
7.0
8.0
4.0
Small Room (20%)
6.5
6.0
5.0
6.0
5.0
Power Consumption (10%)
5.0
4.0
5.0
4.0
4.0
Specs Dyson Purifier Hot+... Lasko Ceramic Digit... Comfort Zone Oscill... Comfort Zone Cerami... Amazon Basics 1500W
Model HP07 755320 CZ523RBK CZ499R 1500W
Measured Temperature Increase at 60 Minutes 13 10.8 9.9 12.1 10.1
Remote Yes Yes Yes Yes No
Fallover Protection Yes No Yes Yes Yes
Oscillator Yes Yes Yes Yes No
Fan-Only Setting Yes No No Yes Yes
Thermostat User Interface Digital Digital Digital Digital Dial
Watts 2250 1500 1500 1500 1500

Our Analysis and Test Results

Designed to be a space heater, air purifier, and fan, the Dyson Hot+Cool is a force to be reckoned with. Equipped with convenient and user-friendly controls, it's easy to warm up small spaces to exactly the temperature you want them.

Performance Comparison


Dyson Purifier Hot+Cool space heater - while larger than most space heaters, if you have a space heater and...
While larger than most space heaters, if you have a space heater and air purifier, it cuts down on having two separate machines in your living space.
Credit: Laura Casner

Personal Heat


To determine how well each model performed, we conducted various tests. We wanted to know how well each heater could fit under a desk and how comfortable the heat was at such a close range. We also took into account was how well each heater worked in a living room setting. The Hot+Cool produces a gentle heat that feels more like the radiant heat from a furnace rather than that of a fire. This makes it easy to sit in front of for as long as you need without one spot on your body overheating from a direct blast of heat. It comes up to temperature quickly, which is ideal when you enter a cold room and want to get warm fast.

The powerful fan on this unit makes it so you can feel its warm air up to 12 feet away. The air loses quite a bit of warmth at this distance but it is still nice you have the option of setting it up father away. While most space heaters typically offer a couple of fan speeds, the Dyson has 10 variable speeds. When set to 10, it just about feels like you're going to get blown over; our testers found the sweet spot to be around six or seven. The air feels slightly warmer at setting number four but you have to be pretty close to the device to feel it.


While this unit generates plenty of heat, the machine is much too large to fit under a desk. The hot air coming out of this device never feels super hot like some of the other models do, but we found this to be a more comfortable experience. If you want concentrated and intense heat, you might prefer other models.

Convenience


The scores for convenience come down to all the features that either increase or decrease the ease of operation. Things like programmable settings, remote operation, and intuitive controls all affect how user-friendly each device is. Convenience is where the Hot+Cool takes the cake. For starters, it has the most advanced options for how you want it to oscillate. You can choose between it being stationary, or rotating 45, 90, 180, or 350 degrees. You can set its timer for half an hour, an hour, two hours, four hours, and eight hours.


The remote is clearly labeled with pictures that are intuitive to understand and stores nestled up against the body of the machine via magnets. This device has one of the largest temperature readouts and will display temperatures from 33 to 99 degrees Fahrenheit. Perhaps most notable though, is that this machine is a three in one combo; it functions as a space heater, air purifier, and fan. Having all three of these devices rolled into one saves precious floor space. No matter the season, this machine won't just sit idle, taking up space.

Dyson Purifier Hot+Cool space heater - the dyson's remote is user-friendly and straightforward to use.
The Dyson's remote is user-friendly and straightforward to use.
Credit: Laura Casner

While the air purifier is both smartphone and smart home compatible, the heating component is not. While the remote is easy to use, there are very few controls on the actual body of the machine should you lose it. You will only be able to turn the machine on and off to the last setting it was set to with the remote.

Dyson Purifier Hot+Cool space heater - the dyson's remote stores via internal magnets.
The Dyson's remote stores via internal magnets.
Credit: Laura Casner

Small Room


To determine how effective at heating small spaces each model is, we set them up in our 161 square foot testing room and ran them for an hour. Using a lab-grade thermometer, we measured how much heat was added in twenty-minute increments for the duration of the hour. The Hot+Cool was the clear victor in its ability to quickly heat a small room.


When used in our 161 square foot testing room, it raised the room temperature 8.4 degrees in the first twenty minutes of operation. From 20 to 40 minutes, the temperature went up an additional 2.4 degrees, and from 40 to 60 minutes, another 2.2 degrees. Over the course of an hour, it was able to bring the room temperature up a full 13 degrees, beating out all the other machines we tested.

Dyson Purifier Hot+Cool space heater - its sleek design hides the air filter in the base.
Its sleek design hides the air filter in the base.
Credit: Laura Casner

Dyson Purifier Hot+Cool space heater
Credit: Austin Palmer

Power Consumption


Portable space heaters aren't known for being the most energy-efficient devices. We wanted to know just how power-hungry each device actually is. To find out, we used a wattmeter to see how much the Dyson used. We then multiplied that number by the national average cost of kilowatt per hour. From there, we could determine how much it cost to use each machine for ten hours and one month.

The Dyson's biggest flaw is much energy it consumes. It is by no means the worst offender on our list, but it's a far cry from being a truly energy-efficient device. The Dyson costs $1.76 for 10 hours of use, $53 for 10 hours a day over 30 days, or about $127 when run around the clock for 30 days.


These operational costs put this machine slightly above average in terms of energy consumption. When you consider how powerful this machine is, the energy costs aren't that surprising; if anything, they were better than we were expecting.

Dyson Purifier Hot+Cool space heater - the timer provides a wide range of options.
The timer provides a wide range of options.
Credit: Laura Casner

Value


This device is a powerhouse. It heats small spaces quickly and generates a lovely radiant heat. It is also wildly expensive compared to all the other options we tested. This is primarily due to the fact that this unit incorporates a built-in air purifier. If you are in the market for both, this is a great way to save space and reduce the number of devices you have in your house. Given its performance and versatility, we think the high cost is worth it — assuming you want all the included features.

Conclusion


The Dyson Hot+Cool brings a lot to the table. Not only is it a fully functional space heater, but it is also a high-quality air purifier. This combination of tech doesn't come cheap. Given how unique of a product it is, the price is incomparable to the rest of the field. When it comes to its abilities as a space heater, you won't be disappointed. It makes for a great personal heater and heats small spaces quickly. It's jam-packed full of convenient features, and while not cheap, it doesn't have astronomical operational costs.

Buck Yedor & Austin Palmer

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