Dyson HP09 vs HP10

In this Dyson HP09 vs HP10 review, we will compare the flagship model of the HP series with the recently released mid-level device.

Both can not only be used to purify the surrounding air, but also help keep you warm in winter and cool you down in summer. The colouring aside, they look rather alike. So how do the two variations differ, and which one is the better fit for your needs?

This side-by-side comparison will help you find out.

Coverage Area

Up to 34 m² (370 ft²)

Up to 18 m² (191 ft²)

CADR (Particles)

165 m³/h

85 m³/h

CADR (Formaldehyde)

53 m³/h

40 m³/h

Working Noise

30 – 62 dB(A)

40 – 60 dB(A)

PM 2.5 Sensor




Comparison: Dyson HP09 vs HP10 – What are the Differences?

Coverage Area & Efficiency

The HP09 is suitable for rooms with a surface area of up to 34 m² (370 ft²), while the HP10 is able to purify up to 18 m² (191 ft²). In both instances, the coverage area is based on two air changes per hour (ACH) and a ceiling height of 8 ft (2.4 m).

If you suffer from allergies or asthma, or simply live in an area with elevated pollution levels, and thus require five ACH, the recommended room size would drop to 14 m² (148 ft²) for the HP09, and a meagre 7 m² (76 ft²) for the HP10.

Winner: HP09

Up to 34 m² (370 ft²)

Up to 18 m² (191 ft²)

Clean Air Delivery Rate

Equipped with Dyson’s 360 Combi Glass HEPA + Carbon air purifier filter, the HP09 and HP10 first remove 99.97% of particles as small as 0.3 microns, before neutralizing odours and gases including VOCs using activated carbon.

With a Clean Air Delivery Rate (CADR) of 165 m³/h for particles and 53 m³/h for formaldehyde, the HP09 is more efficient than the HP10 at doing so. Both models are fully sealed to HEPA H13 standard, ensuring that the captured pollutants stay inside the machine.

Winner: HP09

165 m³/h (Particles) / 53 m³/h (Formaldehyde)

85 m³/h (Particles) / 40 m³/h (Formaldehyde)

How to use your Dyson Purifier Hot+Cool Formaldehyde HP09 purifying fan heater

Working Noise

Operating at just 30 decibels (dB) in night mode, the HP09 is undoubtedly the better choice for light sleepers. Running at full speed, the HP10 does have a slight advantage at 60 dB compared to 62 dB for its competitor.

Both models support auto mode, in which they will automatically adjust their fan speed based on air quality. As soon as pollution levels start to decrease again after a sudden spike, their fan speed and noise level will decrease accordingly.

Winner: Draw

30 – 62 dB(A)

40 – 60 dB(A)

Sensors & Display

To gather the real-time data needed for the auto mode, the HP09 and HP10 use a particulate and a gas sensor to keep track of the amount of pollutants in the air. The HP09 is also fitted with a humidity and temperature sensor.

You can always view the current air quality using the LCD screen found on both devices. With the HP09, much more detailed information such as 24H AQI, PM 2.5, PM 10, VOCs, NO2, SO2 statistics are available through the Dyson Link app (see below).

Winner: HP09

4 sensors / LCD

2 sensors / LCD

How to use your Dyson Purifier Hot+Cool Gen1 HP10 purifying fan heater

Connectivity & Compatibility

Using a Wi-Fi connection and the Dyson Link app on your smartphone, you can monitor and control the HP09 remotely. If you have your hands full, for example while cooking, you can even interact with it using your voice.

It is compatible with Amazon Alexa, Apple Siri, and Google Assistant, and can thus seemingly be integrated with your smart home. The HP10, on the other hand, does not have such capabilities, meaning you have to do with the included remote.

Winner: HP09

Yes / Amazon Alexa, Apple Siri, Google Home


Weight & Dimensions

In the final round of this Dyson HP09 vs HP10 comparison, we will have a quick look at the weight and dimensions of the two devices. Although the differences are rather minimal, the HP10 is both the more lightweight and smaller model.

Winner: HP10

5.7 kg, 248 x 248 x 764 mm

5.3 kg, 220 x 220 x 765 mm


Conclusion: Dyson HP09 vs HP10 – Which is the Better Air Purifier?

Unsurprisingly, the Dyson Purifier Hot+Cool Formaldehyde HP09 comes out on top in this match-up. It has both a higher coverage area and CADR, is quieter in sleep mode, equipped with more advanced sensors, and can be seemingly integrated with your smart home.

The Dyson Purifier Hot+Cool Gen1 HP10 might be an option if you have no intention of monitoring and controlling your purifier remotely, and a smaller room to cover. Like its competitor, it can also be used to heat and cool, but is available at a lower price.

Find out how the latest midrange device of the HP series performs against its counterpart from the TP series in our comparison Dyson HP10 vs TP10.


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