
Dyson has various air purifiers in its range. Air purifiers that not only clean the air, but can also heat and cool it. A good example is the Dyson Purifier Hot+Cool Auto React (HP7A) air purifier.
I have decided to purchase this air purifier and test it extensively. In this Dyson Purifier Hot+Cool Auto React review I discuss my findings with this Dyson air purifier.
The Dyson HP7A air purifier is a powerful air purifier that performs well. It is suitable for larger spaces and is easy to use. The air purifier can clean, cool and heat. Thanks to Auto React, the air purifier automatically starts working when necessary.
- Easy in use
- Beautiful design
- Easy to maintain
- Cleaning, heating and cooling
- Not cheap
- Noisy
Unboxing Dyson Hot+Cool Auto React
When you receive the Dyson Hot + Cool Auto React, it immediately becomes clear that it is a super large device. It is a huge box, where the air purifier is depicted in full size. View the complete contents of the package below.

- Dyson HP7A: the Dyson Purifier Hot+Cool Auto React
- Front filter: part of the air purifier filter
- Rear filter: part of the air purifier filter
- Remote Control: To operate the air purifier from a distance
Performance: air cleaning, cooling and heating
The Dyson Purifier Hot+Cool Auto React is an air purifier that can clean, cool and heat the air. This makes the air purifier suitable for every season. The air purifier is suitable for surfaces up to approximately 250 square meters. There is a Clean Air Delivery Rate of 1335 m3/h. Don’t know what this means? View more information about the CADR rating.
The air purifier is equipped with a HEPA filter that meets the HEPA-13 standard. This must involve a filtering of 99.95% of polluting air particles down to 0.1 micron. Dyson even reports that it’s not just the HEPA filter that meets this standard, but the whole appliance: “In our latest air purifiers, it’s not just the filter that meets the HEPA H13 standard, but the whole appliance,” says Dyson.
“In our latest air purifiers, it’s not just the filter that meets the HEPA H13 standard, but the whole appliance”
Dyson

The air purifier is also able to heat or cool the air. The air purifier uses Air Multiplier technology, which provides powerful air circulation. The air purifier can rotate 350 degrees.
Design of the Dyson Hot+Cool Auto React
We already know from its vacuum cleaners that Dyson attaches great importance to design. But her air purifiers also look nice: the Dyson Hot+Cool Auto React is beautifully finished and has a number of beautiful elements. The air purifier does not look out of place in the living room.
There are also some smarts implemented in the design. An opening has been made at the top of the air purifier, where you can store the remote control of the air purifier. The filter consists of two parts, which you simply click out of the air purifier. The remote control is also beautifully designed and easy to hold.

There is a display on the front of the air purifier, where you can read real-time information. For example, what function the Dyson air purifier is in or what the current air quality is like.

Ease of use of the Dyson HP7A
As in all my other air purifier reviews, I check how easy the Dyson air purifier is to use. In other words: how can I operate it and what functions does this Dyson HP7A have? I also tested the noise level.
Dyson Hot+Cool Auto React features
As I have just indicated, this is an air purifier that can not only clean the air, but also heat and cool it. You can put the air purifier in different positions. All modes in a row:
- Automatic mode: the air purifier automatically starts working until the desired air quality is reached.
- Night mode: the LCD screen is dimmed and the air purifier will work more quietly.
- Heating and Cooling Mode: To heat or cool the air to a specific temperature.
You can also use a sleep timer. After the set time, the air purifier will then switch off automatically.
With the remote control you can make the air purifier oscillate: this will make the air purifier rotate to ensure good air circulation. You can also manually adjust the speed and direction of the airflow via the remote control.
Dyson air purifier controls
Operating the Dyson Purifier Hot+Cool Auto React air purifier is done with the supplied remote control. Unfortunately I can’t control it via my smartphone as this is not a ‘Link’ Dyson purifier. If you have a Link purifier, you can pair it with the Dyson Link app and voice control the purifier via Amazon Alexa, Google Nest or Siri.
Unfortunately I can’t control it via my smartphone as this is not a ‘Link’ Dyson purifier.
Noise level: no silent air purifier
Do you use the air purifier in the bedroom? Then it is very important to look at the noise level. At Purifiertester.com I always test the sound level at the maximum setting with my own decibel meter.
The Dyson Purifier Hot+Cool Auto React has a noise level of 68 decibels. This makes it not a silent air purifier. However, there is a night mode that you can switch on, with which the noise level is considerably lower.
Maintenance: Clean Dyson air purifier and replace filters
A Dyson air purifier is equipped with a non-washable HEPA filter and also a non-washable active carbon filter. Cleaning Dyson air purifier filters is therefore unfortunately not possible. However, replacing the Dyson filter is an easy job and does not require any technical knowledge. Check out how to replace the Dyson air purifier filter.

You can reset the operating time of the filters after replacing the Dyson air purifier filters. This is very handy, because then your Dyson will give you a signal when it’s time to replace. This can differ for every air purifier, because it depends, among other things, on where you place an air purifier and how often you use it.
Cleaning the Dyson air purifier is also important. You can easily do this with a dry, clean cloth. This can prevent any air blockages.

Dyson HP7A specifications
Now that we’ve done all the research and testing, we can list all the specifications of the Dyson HP7A. View the results in the overview below.
Specification | Test result |
---|---|
Maximum surface | 250 m2 |
Filter | HEPA 13 and active carbon filter |
Noise level | 68 decibels |
CADR rating | 1335 m3/h |
Dimensions | 205*130*764 mm |
WiFi | No |
Price | From $ 659 |
Conclusion Dyson Purifier Hot+Cool Auto React review
The Dyson Purifier Hot+Cool Auto React is a very handy air purifier that you can use all season long. The air purifier can not only clean the air, but also heat or cool it. It is suitable for larger spaces up to 250 square meters.
The air purifier is easy to use: thanks to the included remote control, you can easily set the air purifier to a different mode or adjust the air speed and direction. Unfortunately, this is not a Link air purifier, so control via the app or voice commands is not possible.
With a price around 659 dollars, it is not a cheap air purifier. However, this is an air purifier of very good quality that also looks good.
Bram Tigchelaar
Bram is the co-founder of Purifiertester.com. Together with his brother, he gives advice for cleaner air quality in your home. He combines decades of experience in the world of air quality products with a passion for product testing. Questions about his approach? Feel free to send him a message!