Dyson HP04 vs HP09 Trusted Comparison 2023

When it comes to air purifiers, Dyson is a brand that is highly regarded for its innovative technology and sleek designs. Two of their most popular models are the HP04 and the HP09. Both purifiers are equipped with advanced features such as HEPA filters, intelligent sensors, and oscillation capabilities, but what sets them apart? In this blog post, we will take a closer look at the Dyson HP04 vs HP09 and compare their performance, features, and overall value. Whether you’re in the market for a new air purifier or simply curious about the latest Dyson models, this comparison will provide you with all the information you need to make an informed decision.

Key Difference between Dyson Hp04 vs Hp09

  • Weight & Dimensions
  • Room Coverage & CARD
  • Noise Level
  • Filtration System
  • Heating Capability
  • Sensors

Comparison Table Of Dyson Hp04 vs Hp09

Specifications Dyson Hp04 Dyson Hp09
Room Coverage 126 square feet 650 square feet
CADR(Clean Air Deliver Rate) 50 96
Noise Level 40-57 dB 58db
360° Glass HEPA Filter Yes No
H 13 Sealed HEPA Filter No Yes
Heating Capability 255 square feet 450 square feet
SSF Sensor No Yes
Oscillation 0-350° 0-350°
Auto mode Yes Yes
Night Mode Yes Yes

Weight & Dimensions of Dyson Hp04 vs Hp09:

The Dyson Hp04 is the lighter and more compact unit compared to the Hp09, making it ideal for smaller spaces. The Hp04 measures 8.07”D x 9.76”W x 30.08”H and weighs 3.15 pounds, while the Hp09 measures 30″H x 9.8″W x 5.12″L and has a weight of 12.6 lb, making it much bulkier than the Hp04.

If you’re looking for a device that can fit in tight spots or doesn’t take up too much space, then the Hp04 is probably your best option since it takes up less room than its bigger cousin – but if you are willing to sacrifice some space for higher performance, then the Hp09 is the better choice.

Room Coverage & CARD of Dyson Hp04 vs Hp09:

The Dyson Hp04 is ideal for small spaces such as bedrooms and home offices, offering coverage up to 126 square feet and 50 cfm CARD (Clean Air Delivery Rate). This means that the Hp04 can purify the air in a smaller space quickly, leaving you with fresh and clean smelling air.

On the other hand, the Hp09 has a much bigger coverage area of 650 square feet and 96 cfm CARD, making it ideal for larger areas like living rooms or open-plan spaces. With its extra coverage, more air can be purified at once ensuring that all parts of the home are safe from harmful pollutants.

The higher CADR (Clean Air Delivery Rate) of the Hp09 also allows it to filter larger amounts of air in a shorter time period compared to the Hp04. This means that not only do you get increased coverage with an Hp09, but you also get quicker and more efficient filtration rates.

Noise Level of Dyson Hp04 vs Hp09:

The noise level of the HP04 air purifier is 40-57 dB, which is suitable for quieter environments such as bedrooms or home offices. The noise range of the HP09 model is slightly higher at 58 dB, which can be somewhat louder than the HP04.

The increased noise level makes it ideal for larger spaces where more air needs to be purified quickly – perfect for living rooms or open plan areas that require powerful air purification capabilities.

Therefore, when considering a powerful air purifier, it’s important to consider both the sound output and whether the machine is well suited to your environment. The HP04 is quieter and better suited for smaller spaces while the HP09 has a higher noise level.

Filtration System of Dyson Hp04 vs Hp09:

The Dyson Hp04 and Hp09 both use three types of filters to capture airborne particles. The first is the Pre-Filter, which captures larger dust particles and other allergens. The second is the Activated Carbon Filter, which removes odors and smoke. Lastly, the HEPA filter captures smaller particles like pollen and dust mites.

The difference between the two air purifiers lies in their difference in HEPA filter performance.

Dyson Hp04       

360° Glass HEPA Filter

Dyson Hp09

H 13 Sealed HEPA Filter

Pre-Filters: Both air purifiers use a pre-filter to capture larger particles such as pet hair, dust, and other allergens these fiters are washable and make of fabric. The pre-filter of the HP09 is 2x thicker than that of the HP04, providing better overall protection against dust and allergens.

Activated Carbon Filter: The HP04 uses an activated carbon filter to remove odors and smoke from the air, while the HP09 has an enhanced activated carbon filter for improved performance in removing odors and smoke.

360° Glass & H13 Sealed HEPA Filters:

The Dyson Hp04 360° Glass HEPA Filter is designed to capture particles of 0.3 microns in size or larger, while the Dyson Hp09 H 13 Sealed HEPA Filter has been tested and certified by AHAM to capture particles as small as 0.1 microns, making it more effective at capturing smaller airborne particles. So H13 HEPA Filter prove to be more effective at filtering and purifying the air.

Dyson HP04 Vs HP09 filters comparison

The Dyson Hp04 360° Glass HEPA Filter is designed to capture larger particles, whereas the Dyson Hp09 H 13 Sealed HEPA Filter captures smaller particles that are too small for traditional filters to capture. The H13 filter has a tight seal and superior airflow which makes it more effective at filtering out particles than the Hp04 filter.

The Dyson Hp04 360° Glass HEPA Filter also features a glass fiber filter media which is durable and can last up to 3 years and the life of H13 HEPA filter is 1 year.

Heating Capability:

The Dyson HP04 and HP09 air purifiers both have the capability to heat a room; however, there are significant differences in their capacities. The HP09 is capable of heating up to 450 square feet while the HP04 can only heat up to 255 square feet.

The major difference between these two models lies in how they work. The HP04 works through hot-air diffusion (blowing warm air out of the machine) whereas the HP09’s advanced technology allows it to directly heat up the air inside the room.

This more efficient process gives it more consistent and powerful heating abilities than that of the HP04, meaning that it can provide better coverage for larger areas. The HP09 is the best option for anyone looking for a powerful air purifier with strong heating capabilities.

It can help to provide comfortable and warm temperatures in areas up to 450 square feet, making it perfect for larger rooms or open-plan spaces.

Sensors of Dyson Hp04 vs Hp09:

The Dyson HP04 and HP09 air purifiers both use three types of sensors to monitor the quality of the air in a given space

  • PM 2.5 sensor
  • PM 10 sensor
  • Gas sensor

The Dyson HP 09 has 1 more sensor

  • solid-state formaldehyde sensor

PM Sensor: The PM 2.5 and PM 10 sensors measure the concentration of fine particles in the air, such as dust, smoke, mold spores, and other small pollutants. They are capable of detecting particles as small as 0.3 microns, which makes them highly sensitive to indoor air quality.

Gas Sensor: The gas sensor on both models measures the levels of volatile organic compounds (VOCs) in the air. VOCs are chemicals that can be released from fabrics, paint, furniture, cleaning products and other household items.

Solid-State Formaldehyde Sensor: The solid-state formaldehyde sensor is an advanced technology developed by Dyson which performs better than a traditional formaldehyde detector. It is capable of detecting formaldehyde levels at concentrations as low as 0.15ppb, giving you more accurate readings and better control over indoor air quality.

The HP09 has a larger number of sensors than the HP04 which makes it more effective at monitoring air quality in any given area. It is also more advanced, allowing for a wider range of air pollutants to be identified and monitored. This makes it the ideal choice if you want accurate and reliable readings about the air in your home.

Related Posts: Dyson HP04 vs HP06, Dyson Hp04 vs Hp07

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Similarities between Dyson Hp04 vs Hp09

  • Oscillation
  • Display Screen
  • Connectivity & Compatibility
  • Auto Mode
  • Night Mode

Oscillation of Dyson Hp04 vs Hp09:

When looking at the oscillation capabilities of the Dyson HP04 vs HP09, the two models are relatively similar. Both models have a 0-350° oscillation range, which is ideal for covering large spaces and distributing clean air throughout a room. The main difference between the two models lies in their enhanced coverage capabilities.

The HP09 model has been designed with an improved range of motion and wider distribution to reach further distances than the HP04. This means that more areas can be effectively cleaned and more efficient air purification achieved. It also allows for greater coverage in larger spaces, meaning you won’t need to worry about missing any corners when it comes to purifying your home or office environment.

Display Screen of Dyson Hp04 vs Hp09:

The display screen of both the Dyson HP04 and HP09 are quite similar. Both models feature a digital display that provides real-time feedback on the state of your environment. This includes readings related to temperature, humidity, and particulate data such as PM10 and VOC levels – all of which can be used to determine whether the air in your home or office is clean and safe.

These internal readings, both sensors also allow you to check outdoor air quality by displaying an AQI (Air Quality Index) number along with temperature and humidity levels outside. The label for this reading is generally set to the city name where you live, making it easy to compare local air quality against other locations around you.

Connectivity & Compatibility:

The connectivity and compatibility between the Dyson HP04 and HP09 air purifiers is very similar. Both can be controlled remotely, via a smartphone app (Dyson Home), or with voice commands through Amazon Alexa or Google Assistant.

They both also have a remote control for quick access to settings, plus a display screen/physical unit for limited options. However, there are some differences between the two in terms of their level of connectivity and compatibility.

The HP04 has three types of connectivity On the other hand, the HP09 offers four types of connectivity including Display Screen/Physical Unit (limited options).

The HP09 also has the added benefit of a Dyson Link App, which allows users to easily set up, control and monitor their device from their smartphone or tablet. With this app, users can adjust settings like fan speed, oscillation, timers and more – plus they can also check filter status and receive notifications when it’s time to clean or change filters.

Auto Mode of Dyson Hp04 vs Hp09:

Auto Mode is a feature available on the Dyson HP04 and HP09 air purifiers which allows the machine to self-regulate its performance. It uses an array of sensors to detect particles in the air, such as pollen, dust mites and other allergens, and then adjusts fan speed accordingly to ensure optimal air quality.

When Auto Mode is enabled, the purifier will automatically adjust its settings depending on changes in air quality. This means that you don’t need to worry about manually adjusting your settings for different environments – simply turn it on and let it do all the work for you.

The benefit of Auto Mode is that you can trust that your purifier is working at its best even when conditions change.

Night Mode of Dyson Hp04 vs Hp09:

Night Mode is a feature of the Dyson HP04 and HP09 air purifiers which helps to reduce noise disturbances during sleep. It can be activated manually or through the app, depending on the model and its settings.

When night mode is enabled, it will automatically adjust the fan speed to a quieter level. This helps to reduce any loud humming noises associated with higher fan speeds, allowing you to get your rest without being disturbed by loud noises coming from the machine.

Night mode also dims the lights on both models so that they don’t interfere with your sleep either. Night mode also increases overall energy efficiency as well by reducing power consumption when not in use.


These top-of-the-line models are engineered to filter out harmful particles and allergens, providing a clean and healthy environment. While both air purifiers boast impressive features, the HP09 takes it up a notch with its superior Clean Air Delivery Rate (CADR), state-of-the-art sensors, and advanced heating capabilities. With the Dyson Link App, you can easily control and monitor your device remotely, ensuring your air purifier is always working at peak efficiency. For an all-in-one air purification solution, the HP09 is undoubtedly the way to go. Whether you value powerful performance or sleek design, both the Dyson HP04 vs HP09 models guarantee superior air purification capabilities.

Related F.A.Qs:

Can I leave my Dyson air purifier on all night?

Yes, it is safe to leave your Dyson air purifier on all night. In fact, it is recommended that you leave it running continuously to ensure that you maintain high air quality in your living or work space. Dyson air purifiers are designed to be energy-efficient and use minimal power, so you do not have to worry about your electricity bills.

How many square feet does Dyson purifier clean?

The square footage that a Dyson air purifier can clean depends on the model.

  • The Dyson Pure Hot + Cool (HP01) air purifier is recommended for rooms up to 400 square feet.
  • The Dyson Pure Cool (TP04) air purifier is recommended for rooms up to 500 square feet.
  • The Dyson Pure Hot + Cool (HP04) air purifier is recommended for rooms up to 126 square feet.
  • The Dyson Pure Hot + Cool Formaldehyde (HP09) air purifier is recommended for rooms up to 650 square feet.

It’s important to note that the recommended square footage is based on a single air change per hour, which is the minimum recommended for air purifiers to be effective. If you want to achieve a higher air change rate, you may need to choose a larger model or use multiple air purifiers in the same room.

How long do Dyson air purifier filters last?

The lifespan of Dyson air purifier filters varies depending on the model and usage. However, on average, Dyson air purifier filters last between 6 and 12 months before needing to be replaced.

The Dyson air purifier will alert you when it’s time to change the filter. The filter life indicator on the purifier will light up, letting you know that the filter needs to be replaced.