Dyson HP02 vs HP04 – A Tale of 2 Multi-Purpose Air Purifiers

Worried about the air quality in your home?

Dyson has two great models of air purifiers in the Dyson Pure Hot + Cool air purifier range that can help you out. The Dyson hp 04 and 02 are designed to heat or cool the air and have outstanding airflow ratings.

So which one should you buy?

At a Glance:

  1. Dyson HP02
  2. Dyson HP04

Let us do a Dyson hp02 vs hp04 comparison and see which one comes out on top!

The Dyson hp04 and hp02 air purifiers are great for people who want a single device to provide multiple functions. These machines improve the quality of air in your home and provide heating and cooling functions.

Traditional air conditioners use Freon gas. However, these purifiers use fan technology for cooling temperature and provide better results.

This functionality gives them an edge over separate devices that provide a single function to either control the temperature or purify the air in homes.

It is convenient for buyers to find various functionalities in a single unit.

Both units have almost similar dimensions and weight. So it all comes down to which device is equipped with more advanced features to provide better results to the user to take the lead in this comparison.

dyson hp02 vs hp04
Dyson HP02

Dyson HP02


Dual Capability of Heating and Cooling

HEPA filtration

App and voice support

Remote controlled

Many advanced features



hp02 vs hp04
Dyson HP04

Dyson HP04


Features more advanced than Hp02

Better filtration

Better oscillation range


Expensive then Hp02

Compare Dyson HP02 vs HP04

Size8.7 x 6 x 24.88 inches9.76 x 8.07 x 30.08 inches
Weight8.62 pounds19.14 pounds
Customer Reviews4.4 out of 5 stars4.4 out of 5 stars
Auto modeYesYes
Digital DisplayYesYes
Voice & AppYesYes
Room CoverageMedium roomBetter then Hp02
Comparison chart hp02 vs hp04

What is the difference between HP02 and HP04?

The Dyson hp04 is the latest model in the range and comes most recent technology that makes it more energy-efficient than its predecessor.

There are other differences between the Dyson HP02 and Dyson HP04 that you should know about before deciding.


The HP02 is a sleek, modern-looking device that will fit in with any home décor. It is around 2 feet and one-inch tall and 7.25 feet wide.

The HP04, on the other hand, is 2.5 feet tall, and its width is slightly smaller at just 6.67 feet.

Both have a 360 intake. This means that the device takes in air from all sides.

Once the air is filtered, it is recirculated back into the room. Hence, the device can be placed anywhere in the room without worrying about the optimum placement for maximum airflow.

The downside to the 360 intake design is that these units are not as compact as those with a single-side intake.

Design-wise, these machines are very similar.


These machines have strong airflow capabilities that make them great at quickly purifying the room.

One difference between the two models is that HP04 has backward airflow settings to purify without heating or cooling functions. So the air will flow backward instead of the room it’s facing.

This vital feature of the HP04 puts it ahead of its competitor.

The airflow of Hp02 is measured at 53 gallons per second (also calculated as 425 cfm), while the HP04 can exchange air at a rate of 77 gallons per second (around 60% faster). This makes the overall purification process quicker with the HP04.


When choosing between the Dyson Hp02 and HP04, the oscillation range is an essential factor to consider.

The HP04 has a significantly better oscillation range of 350 degrees, which means it cleans the surrounding air much more quickly.

This is significant if you want to place the purifier in a large room.

On the other hand, the HP02 has a limited oscillation of just 180 degrees. While this might be enough for smaller rooms, it may not suffice for a larger area.


Both units are multi-functional purifiers with a dual filter design.

The True HEPA filter and the activated carbon filter are vital for proper air purification for their benefit to the filtration process.

The difference here hp04 vs hp02 filtration-wise is that HP04 is equipped with an advanced activated carbon filter that can efficiently eliminate unpleasant smells, gasses, and other chemicals in your home. This makes it a better option for pet owners or chain smokers.

While the HEPA filters out the smallest of airborne particles and pollutants that could be present in the room due to various reasons like accumulation of dust that subsequently also causes dust mites.

The advanced activated carbon filter is important because it cleans and filters outs the pollutants. If you are a pet owner, these filters can remediate pet odor also.

The Hp02 does not have this advanced filter, so it does not remove harmful organic compounds from the air. If you are often exposed to indoor pollutants, the Dyson hp04 unit is better.

LCD Display

Dyson is a household name in the vacuum cleaner industry and has entered the air purifier market.

Two of its most popular models are the Dyson hp02 and hp04. Both these models come with an LCD display. The difference in both LCDs is how and what informational data is displayed.

The hp02 model displays only a few parameters, while the hp04 model displays temperature, filter quality, air quality, fan speed, power, and humidity level.

Another difference between the two models is that the hp04 is a newer model and thus, comes with a few additional features. For instance, the hp04 has a built-in LED display that makes it easier to view all the information at a glance. The hp02 does not have this feature.

If you are looking for an air purifier that comes with all the bells and whistles, then the hp04 is the better option. However, if you are interested in an affordable option in air purifiers, then the hp02 is a good option too.

Whichever way you go, you are getting a quality product from Dyson.

CADR rating

The comparison of hp02 vs hp04 CADR rating is one way to quantify the level of efficiency.

The CADR for Hp04 is 658 cfm; on the other hand, the CADR for Hp02 is 245 cfm.

However, please note that the CADR for hp02 is still noticeably higher than most of the other options available in similar price ranges.

So, which one should you go for?

Let’s discuss some more about the features of each device to see what they have to offer.


These purifiers are multi-functional, with each offering some different benefits. With reference to the Dyson hp04 vs hp02 analysis, the HP02 is slightly lighter and smaller than the HP04, making it an obvious choice for those with limited space.

However, the HP04 is heavier but also offers more features. Ultimately, which of these two purifiers is best for you will primarily depend on your requirements and preferences.

Either way, you can’t go wrong with a Dyson air purifier!


These models are suitable for asthma and allergy sufferers.

Hp02 has the acknowledgment Asthma and Allergy Foundation of America for being a relevant air cleansing machine for mitigating allergies.

The Hp04 has approval from PTPA for better specs and built quality.

Hence both devices have been recognized by respective organizations for capabilities.

What are the similarities between HP02 and HP04?

Apart from differences, these devices have certain similarities too.

To begin with, both of them come under the category of multi-functioning air purifiers.

Further similarities are discussed below

Triple Functions

These home gadgets offer triple functionality to users. They have purifying, cooling, and heating function, all packed in a single device.

You can program the device for purification without cooling or heating the air. The heating and cooling functionalities come in handy in winter and summer, respectively.

With Dyson’s focus on innovative technology, the hp02 and hp04 are perfect additions to any home.

Make sure to consider these purifiers when making your next purchase!

Night Mode

If you are still struggling with Dyson hp04 vs hp02 features. 

Both air purifiers are multi-functioning and come in a nighttime mode. The noise level is also shallow in this mode, making it perfect for those who want to get a good night’s sleep.

WIFI capability:

As homeowners, we are always looking for effective ways to enhance the quality of the air we breathe in our homes. An excellent solution is to use an air purifier, especially with WiFi capability.

You can easily access both the cleansing machines remotely as they both have WiFi.


They both have a sleep mode that makes them quiet enough to use at night. Additionally, buyers have received high marks for their technical features and professional design.

For Dyson hp02 vs hp04 noise level ranges, there is not much difference. It flows from 40 to 57 dB on low and high fan settings.

Choosing between the two may come down to personal preference, as both models offer similar features and functionality in terms of the noise level.

Homeowners need to have an air purifier that suits their needs.

Dyson Hp02 and Hp04 are two multi-functioning air purifiers on the market.

They can be operated by the Dyson Link app. However, there are some differences. With the Hp02, you can control the room temperature by adjusting the heat generator. The latest Hp04 model does not have this feature due to government UL1278 compliance.

So comparatively, HP02 takes the lead here as a more intelligent air purifier.

Energy Consumption

Dyson’s HP02 and HP04 air purifiers are excellent choices for homeowners looking to save on their energy bills.

These units consume almost the same amount of energy in cooling and are very efficient in this area. All Dyson air purifiers in the ‘HP’ series almost consume the same amount of electricity, around 40 watts.

The timer mode comes in useful. So you can use it for a limited time during the day to save on your electric expenses.

This utilization is higher on heating mode, i.e., 1200 watts, almost similar to a console heater.

It is always feasible to use purifiers for a limited time in a day to cut costs on your power bills.

Remote Control

Dyson has been continuously innovating its products.

With the latest addition of smart sensors to both the Dyson hp02 and hp04, the capabilities and performance of these units have increased.

The air quality sensors in the hp02 help to control the fan speed and save energy consumption while maintaining balanced air quality in the room.

The hp04 has three sensors– one for relative humidity and temperature, one for particulate concentration, and one for gas concentration.

These sensors help monitor the air quality in the room and keep purifying it until there are no contaminants left.

Dyson Link app can access the control operations for both devices. Moreover, the operations can be controlled with a magnetic remote control that can be attached to the units

The remote control process is made simpler by including Alexa voice control capabilities to the Hp04.

Overall, both units are great air purifiers that offer different features to help improve the quality of your indoor air. In comparing smart control operations for hp02 vs hp04, the hp04 has the edge in this category with its addition of smart sensors.

Air Multiplier Technology

The air multiplier technology is a unique feature. This technology amplifies the surrounding air, providing a constant stream of maximum airflow throughout the room.

Hence, both HP02 and HP04 have excellent purification and air circulation, making them perfect for home use.

Having one of these machines can help improve the air quality in your home and make it a safer and healthier place for you and your family to live.

Safety Design

The bladeless design of the Dyson HP series adds to the safety features offered to users. You do not have to worry that children in your home may hurt themselves by touching the blade of the fans. 

Another excellent feature informs the user if the unit is being moved. This means that no one is likely to move the unit without your consent.

Dyson models have an auto mode for shut-off features as well. It is activated after 9 hours of uninterrupted use when the machine is heating. Moreover, the heat is turned off and accidentally rolled over. The machine can be turned back On manually or by remote control access.

Smart Fan Settings

Dyson’s HP02 and HP04 air purifiers offer quality to their users along with smart features.

Both units use air multiplier technology and have more than ten fan speed settings. In addition, both purifiers have a timer function that allows you to set them to run for a certain period each day.

The units also have air quality sensors that help them adjust their fan speed according to the room’s needs.

Combining these features makes both HP02 and HP04 great options for anyone looking for an air purifier that can be customized to their needs.

So, which one should you choose?

It depends upon your budget and what you’re looking for in an air purifier.

If you want a unit specifically designed for allergies, then the HP04 might be the better option for you.

However, if you’re looking for a general air purifier that will do a great job cleaning the air in your home, then the HP02 would be a good choice.

How do we test?

When it comes to air purifiers, the Dyson hp02 and hp04 are two of the most popular models on the market. For comparison, we tested these products in a closed room environment. 

We took an initial measurement of the room’s air quality and then turned both purifiers on high. After one hour, we took another measurement. The results showed that the Dyson hp02 and hp04 both did a great job. However, the Dyson hp04 was better for its advanced filtration and getting rid of harmful particles. Overall, both of these products are great options for anyone looking.

Concluding the Dyson Hp02 vs Hp04 debate

So, which air purifier should you choose?

The Dyson HP02 or the Dyson HP04?

Both devices are excellent options and share many of the same features in their respective price ranges.

However, the HP04 has a few advantages that make it a superior choice. If you want an air purifier with an advanced carbon filter and a higher airflow rate, then the HP04 is the better option.

Otherwise, either device would be an excellent choice for removing allergens and other pollutants from your home’s air.

Let us know in the comment box which unit you decided to go with!

Frequently Asked Questions

How many square feet do Dyson HP04 and HP02 cover?

It can cover up to 360 to 400 square feet. Hp04 can cover more ground than HP02.

Does Dyson pure cool actually cool air?

Dyson Pure is not designed to be an air conditioner. They provide a cooling sensation with the air circulation.

Is Dyson the best air purifier?

Dyson purifiers are some of the best air purifications devices available today with advanced features, unlike any other brand. 

How long does the Dyson hp04 filter last?

Its filters have a useful like of around 4300+ hours and require replacement every year.

Shahzaib Haider
Gadguy.com is the go-to website by S. Haider for all things consumer electronics. You can find reviews on new releases and trending gadgets. More importantly, you'll get an insider perspective from someone who knows these devices. S Haider, a banker by profession and a tech enthusiast by evening, has been writing about consumer electronics for over five years now which gives him ample knowledge when it comes down to understanding what users need in their lives today; whether they're looking into buying something new or just want some advice.