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Dyson Pure Cool DP04 hepatech air purifier

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Set Alert for Product: Dyson Pure Cool, DP04-HEPA Air Purifier and Fan WiFi-Enabled, Large Rooms, Automatically Removes Allergens, Pollutants, Dust, Mold, VOCs, White/Silver - $399.99
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☑ Air Multiplier Technology for powerful airflow
☑ Wi-Fi Connection
☑ 10 fan speeds
☑ Remote control
☑ Smart Cooling fan and hepatech air purifier
☑ Auto/Smart Mode
☑ Sleep Mode

Last updated on June 2, 2020 8:24 pm

Score & Analysis

Features Score



Price Range : $301 - $400

Group Rank : #4( out of 7 Products )


Average score in the group


Best score in the group



Overall Rank : #41( out of 85 Air purifier )


Average score in Air purifier


Best Score in Air purifier



Features Group This
Best Average Remarks Best Average Remarks
CADR (Clean air delivery rate) 680 253.75 below average
85 184.33 below average
CADR Dust 400 222.33 below average
N/A 164.7 below average
CADR tobocco smoke 400 222.33 below average
N/A 163.45 below average
CADR pollen 400 225.33 below average
N/A 176.64 below average
Air changes per hour 5 4 below average
N/A 2.8 below average
Energy consumption [Watt] 32 52.25 Best
32 65.6 below average
Room Size 620 418.33 below average
290 332.98 below average
Noise level [db]-Air purifier 30 46.17 below average
57 41.09 Above average
Airpurifier weight [lb] 5.95 10.69 below average
15.87 13.22 Above average
Warranty [Months] 120 50 below average
24 42 below average


Dyson DP04 Hepatech airpurifier Dyson Pure Cool DP04 hepatech air purifier is a cooling fan and air purifier which filters indoor air and removes about 99.97% airborne pollutants and particles down to 0.1 microns.

It is very easy to install and has a magnetic remote control!!!

It is a very effective device that helps well if you have allergies or suffer from asthma. You can place it anywhere in the room and still enjoy fresh and clean air anywhere in the room it is placed.

It is an hepatech air purifier that is very effective against pollutants and has a Charcoal wall that removes odor as well as harmful gas.

It has different modes which you can use to control the speed and noise produced by the machine.

The speed mode, apart from reducing the noise of the air purifier, also features LED dimming. This makes it perfect if you want to place in the same room with your kids.

Features of Dyson DP04 hepatech air purifier:

Below is some other interesting feature of the air purifier:

Air Multiplier Technology

The Air multiplier technology of the Dyson Pure Cool DP04 air purifier is a very impressive feature. It does not have any official CADR value but this feature ensures that its airflow is top-notch.

The air purifier can be placed in any spot in a room and it will still be able to distribute clean air to any corner of the room.

This makes it ideal if you suffer from asthma or frequent allergy attacks.

Wi-Fi Connection

This is another feature in this  Hepatech airpurifier which deserves a mention. This air purifier has an app that you can use to wirelessly control the machine without touching the machine itself.

The app is also useful in checking the quality of air in your home as well as the outdoor air quality of your area.

To do this you have to connect it with Wi-Fi. The Wi-Fi capabilities of this device also make it possible to connect it with Alexa. This means you can use voice commands to control it.

Auto and Sleep Mode

Dyson Pure Cool DP04  Hepatech air purifier has smart sensors that make it possible for you to clean the air in your house without even controlling the machine.

These modes are pretty useful. When the air purifier is set to auto mode, it will control its air distribution based on the quality of air detected by the sensors.

The auto mode can also be activated via the app.

There is also a sleep mode which is very useful as it allows you to sleep peacefully without being exposed to polluted air.

The sleep mode ensures the machine performs at a whisper-sound level when you are sleeping.

10 fan speeds

Most of the air purifiers out there have only 3 fan speeds. Dyson Pure cool has 10 fan speeds! Higher fan speed means more power and air distribution capabilities.

The fan speeds are adjustable and each comes with a varying noise level. The filter used in this machine comes with a replacement indicator.

This means you do not have to worry about the quality of air being distributed as long as the replacement indicator is not on.

Price History

Price history for Dyson Pure Cool, DP04-HEPA Air Purifier and Fan WiFi-Enabled, Large Rooms, Automatically Removes Allergens, Pollutants, Dust, Mold, VOCs, White/Silver
Latest updates:
  • $399.99 - May 14, 2020
  • $449.00 - March 18, 2020
  • $440.02 - March 16, 2020
  • $439.00 - March 11, 2020
  • $432.77 - March 9, 2020
  • $439.00 - March 7, 2020
  • $429.00 - March 5, 2020
  • $443.43 - February 28, 2020
Since: December 25, 2019
  • Highest Price: $449.00 - January 5, 2020
  • Lowest Price: $349.00 - December 25, 2019

Additional information

Specification: Dyson Pure Cool DP04 hepatech air purifier



Mold spores



Bacteria and viruses

Chemical and gas fumes

Odros and smells

Pet dender

CADR rating

CADR (Clean air delivery rate)




CADR tobocco smoke


CADR pollen


Air changes per hour


Energy consumption [Watt]


Room Size


Noise level [db]-Air purifier


Filters & Sensors
Hepa fliter

True hepa Filter

Air quality sensors

Carbon filter

Filter replacement indicators


Washable pre filter

Other useful
Carrying handle


Digital control

Night light

Programmable timer

Technology-Air purifier
0.3µm particle removal (%)


Antimicrobial treatment

Ozone free

Photocatalytic oxidation

Plasma wave technology

Airpurifier Height [inch]


Airpurifier Length [inch]


Airpurifier weight [lb]


Airpurifier Width [inch]


Warranty [Months]


Wireless controls

Amazon Alexa-Air

Google Assistant-Air

App Control-Air

Remote Control-Air

Voice Control-Air


Is this air purifier noisy?

No. One of the best things about Dyson Pure Cool is that even with its powerful 10 fan speeds, the sound it produces at the highest fan setting (55 decibels) is lower than what some other air purifiers with 3 fan speeds produce at their highest setting. In other words, it does not contribute to noise pollution in any way.

Does it remove airborne pet pollutants like hair/fur etc.?

Yes. This hepatech air purifier is capable of removing not only pet dander but also neutralize 99.97% of airborne allergens, pollutants, and particles that are as small as 0.3 microns

How frequently do the filters need to be replaced?

Dyson Pure Cool has filters that are a little bit expensive. It generally needs to be changed after 8 months. This can increase based on how often you use it.

Does it have a washable pre-filter?

No, it does not have a Pre-filter at all. It has a filter that can be vacuumed and reused.

How much maintenance does the Dyson Pure cool DP04 need?

It requires very minimal maintenance. You only have to regularly wipe down the purifier with dry soft cloths (or vacuum if you have a vacuum cleaner). You also have to check the indicator lights so that you can replace the filters when necessary.

Does the pre-filter have a lifespan?

It does not have a pre-filter. However, it has a HEPA filter that can be vacuumed and reused.

Where can the Dyson Pure cool be placed to make it more effective?

Because of its impressive design which allows it to circulate air everywhere in the room, it can be placed anywhere as long as nothing blocks airflow towards it.

What type of impurities does it remove?

It is designed to remove dust particles, pollen, smoke, odor and harmful gases like Ozone, etc. from indoor air.

How portable is Dyson Pure Cool?

It weighs about 10.18 pounds and is pretty lightweight. It can be moved from one spot to another easily.

Does it come with any special feature?

It has a glass filter which is has a 360 degrees radius. This means it can purify the air in all directions. The 360 degrees glass filter also means you can control the direction you want the product to blow air without having to move it to another place.

Who should buy this product?

Because there is no CADR value, it is hard to tell if it is a glorified fan or not. However several other tests show that the quality of air improves when the purifier is one. Thus, it is ideal for people who want to breathe fresh and clean air as well as people with allergies.

Is it energy efficient? Does it consume a lot of power?

Yes, it is energy efficient and does not consume too much power.

What room size does this air purifier cover?

The air purifier can filter medium-sized and large rooms perfectly. It performs excellently in a 12 by 15 ft room.

Can this air purifier be controlled by an app?

Yes, Dyson Pure Cool is a smart machine and can be controlled wirelessly with an app. The app also provides information about the quality of air in your home.

Does it come with a warranty?

There is a 2-year warranty on this product. The warranty covers labor and parts.

What type of filter does Dyson Pure Cool use?

It uses a 360 degrees glass HEPA filter combined with a carbon filter.

How many fan speeds does it have? Are they adjustable?

It has 10 fan speeds. Yes, you can adjust the speed of the fan.

Does this air purifier emit ozone?

No. The air purifier does not use any material that is capable of producing ozone. The machine is even capable of capturing ozone from the air in your home.

Does it have an auto off feature?

Yes, there is an auto off feature on the air purifier. It has Night-time mode and Timer mode which ensure your sleep is not disturbed by unnecessary noise or bright display light. The Timer and Night-time modes can both be accessed via the remote control too.

Does the air purifier have a servicing indicator that indicates when the filter needs to be replaced?

Yes, it does. Dyson Pure Cool has built-in notifications that notify you when you need to replace the filters.

Can I control it with a remote?

Yes, it comes with a remote. With it, you can change the fan settings without directly interacting with the machine.

What are its CADR values?

This is one of the unique things about Dyson air purifiers. They do not have the Clean Air Delivery Rate (CADR). Without this, it is very difficult to determine whether they are just fancy fan or actually air purifiers.

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