Dyson Pure Hot+Cool HP04 review – A heater, fan, and air purifier all-in-one unit

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REVIEW – We’ve reviewed more than our share of air purifiers, fans, and even some heaters, but this is the first time that we’ve reviewed one unit that does all three functions. Let me introduce you to the Dyson HP04 Pure Hot+Cool. It’s a heater, a fan, and an air purifier all in one unit and is made by Dyson, a company known for high-quality luxury appliances.

What is it?

The Dyson HP04 Pure Hot+Cool is an all-in-one pedestal style heater, fan, and air purifier.

What’s in the box?

  • Dyson HP04 Pure Hot+Cool HP04
  • Remote
  • 2 HEPA filters
  • 2 activated carbon filters
  • Instructions

Design and features

At first glance, the Dyson Pure Hot+Cool looks really familiar to the Dyson Pure Cool which Bill reviewed a couple of years ago. The Pure Cool is a fan that doubles as an air purifier. The Pure Hot+Cool adds one more function – a heater.

Dyson’s line of Pure Hot+Cool units are available in 3 sizes and several colors. I was sent the mid-sized unit (HP04) in White/Silver which stands a little over 30 inches.

The upper part of the Dyson device is an open oval where air flows out of a groove around the front edge of the oval. Air can also be directed out the backside of the unit if you want to purify the air without cooling or heating the room. 

It should be noted that this device is not an air conditioner. It’s a fan that circulates the air but does not cool it.

The base of the HP04 houses the motors and the air purifier filtration system along with a circular display and a power button above it.

Buttons on each side of the base allow you to unlock the outside panels to provide access to the filters.

The unit ships with 4 filters. There are 2 inner activated carbon filters shown above.

And two outer HEPA filters that snap into the panels that snap into the outside panels of the base.

This is how the filters nest together. The filters are designed to capture ultrafine particles (PM 2.5), allergens (PM10), volatile organic compounds (VOCs), and nitrogen dioxide (NO2). That means that it is good for people with allergies, pet owners, homes with dust, smoke, pollen, and even mold spores. According to Dyson:

The fully-sealed filter system combines an activated Carbon filter to remove gases, and a Glass HEPA filter that captures 99.97% of microscopic allergens and pollutants as small as 0.3 microns.

I have no way of testing these claims, but I do know that the Dyson’s automatic sensing mechanism increased the speed of the fan/air purifier when I accidentally burnt something in the oven one day.

Filters should last about a year. Luckily, replacements are available on Amazon for around $40.

The base of the HP04 has a unique manual tilt feature that will let you customize the airflow direction.

Also included with the unit is a wireless remote control that provides easy control of all the Dyson’s features. You actually have to use the remote control to control/adjust the heater feature of this device, but more about that later.

There is a circular color display on the front of the Dyson Pure Hot+Cool unit that shows the status of the room temperature, air quality, humidity, filter life, fan speed, and more.

To cycle through the various status screens, you have to use the remote control. You can see the same data in the Dyson Link app on your phone or tablet.

Dyson Link app

I know that installing an app for every gadget that you buy can be a pain in the you-know-what, but you really need to do it for the Dyson Pure Hot+Cool HP04 because, without the app, you’ll not be able to create schedules for the device.

The app is pretty much like the physical remote control plus a scheduling feature and minus the ability to adjust the heater. That’s right, you can not use the app to turn on the unit’s heater or adjust the heat. It’s annoying, but it’s due to a pesky US safety standard. You will need to be careful that you never lose the physical remote control because other than powering the unit on and off with the unit’s built-in power button, you won’t be able to control the device’s heater without the remote because there are no buttons other than power on the device itself.

Using the Dyson Pure Hot+Cool HP04 all-in-one unit

Using and controlling the HP04 is easy (minus the whole heat control issue). I set the review unit up in my basement which stays around 67 degrees F all year round. If you look below at the video thumbnail, you can see that I’ve set the unit on top of an IR heater that we use almost 365 days of the year to keep the basement around 72 degrees F which is my sweet spot. While testing the Dyson, I unplugged the IR heater and the Airdog X5 air purifier that I’ve been using for the last 2 years. I wanted to see if Dyson could do the job of 2 devices.

See it in action

If you watch the short clip above, you can see that the Dyson has a great oscillation feature. That’s a feature that my existing heater and Airdog air purifier lack. The HP04 can rotate up to 350 degrees. The remote will let you choose between no oscillation, 45, 90, 180, or 350 degrees. I feel like this feature helped distribute the warm or cool air very well.

I also liked the auto feature that would keep the desired temperature in the room by automatically using the fan or heater and adjusting the speed of the fan.

I didn’t find the fan to be too loud on the medium settings and on the lower settings, you could barely hear it.

There’s also a night feature that will run the fan at the lowest setting and dim the display.

What I like

  • All-in-one air purifier, heater, and fan
  • Oscillation feature
  • Very quiet on lower fan modes
  • Scheduling feature in the app

What I’d change

  • Add feature control buttons on the device itself

Final thoughts

As I had mentioned at the beginning of this review, we’ve written about a lot of different air purifiers, fans, and heaters over the years. I like that the Dyson Pure Heat+Cool HP04 is an all-in-one unit that heats in winter, helps to keep you cool in summer, and purifies the air all year round. Since it’s Dyson, I trust that they will support this unit with affordable replacement filters for much longer than many of the off-brand air purifiers that we’ve reviewed.

Price: $649.99 and $39.99 for replacement filters from Amazon
Where to buy: Dyson and Amazon
Source: The sample for this review was provided by Dyson.

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