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Dyson purifying desk fan in iron blue
Dyson Pure Cool purifying desk fan logo

Dyson Pure Cool™ DP04 purifying fan (Iron/Blue)

The only purifying desk fan to clean a whole room properly.

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We design our purifying desk fans to go beyond test chamber conditions and focus on real home conditions – this is more than just having an efficient filter.¹ Dyson engineers and research concluded that to clean an entire room properly, you need to sense pollution events automatically, capture ultrafine pollutants and project cleaner air around the room using Air Multiplier™ technology. Only the Dyson purifying desk fan is designed and tested to do all of this.²

Buy direct from the people who made it

Dyson Pure Cool™ DP04 purifying fan

Overall rating

90% of reviewers would recommend to a friend.

Very intelligent product


I have a household with 3 cats, and after we got the cats we found out my husband and 2 children were allergic to cats, so we have HEPA filters all over the house. This purifier is by far the most intelligent filter we have (and we also have the Dyson Pure Hot+Cool Link Purifier). It automatically detects when there is a lot of pollutants in the air and turns on and filters accordingly. The display is a nice feature so I can tell when the air quality is poor in the room. I am always cold, so I love the fact that there is an option to switch the air flow to avoid cooling the room even more. My husband has totally taken over this fan, though, because he loves a cool room when he sleeps, but needs a filter to purify the air. The purifier is quiet enough to not disturb our sleep while keeping him cool. It was so easy to set up the product. We did have a slight issue setting up the filter on our Dyson app, but it was an easy fix with the support we found on and we were able to set up the product within about 10 minutes on the app.

All Purifying Fan Features

  • Senses pollutants in real time
    Automatically detects and reports air quality levels in real time on PM 2.5, PM 10, VOC and NO2.

  • Captures pollutants with 360° sealed HEPA and activated Carbon filters
    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.

  • Projects powerful airflow 
    Air Multiplier™ technology delivers over 77 gallons per second of smooth, yet powerful airflow – circulating purified air throughout the whole room.²

  • Intelligent reporting
    Automatically senses, captures and projects – then reports to your Dyson Link app.³

  • Oscillates up to 350°
    Adjustable oscillation angle from 45° to 350°, to help project purified air around the whole room.

  • Backward airflow mode
    Purifies without cooling you.

  • Fan mode
    Purifies while also cooling you as a fan.

  • Quick and easy filter changing
    Low maintenance, easily changeable filters. With built-in notifications when they require replacing.

  • Night-time mode
    Monitors and purifies using its quiet settings, with a dimmed display.

  • Remote control
    Curved to store neatly on top of the machine.

  • Voice control
    Using Amazon Alexa, control your machine using simple, spoken instructions.

  • Certified Asthma and Allergy friendly™
    Dyson purifiers are certified asthma and allergy friendly by the Asthma and Allergy Foundation of America.

  • Parent Tested Parent Approved
    Awarded the PTPA seal of approval. The seal of approval families trust.

  • Energy Star Certified

In the box

Dyson Pure Cool™ DP04 purifying fan


  • Weight

    10.25 lb

  • Amp diameter

    13.9 in

  • Cord length

    6.05 ft

  • Total height

    27.2 in

  • Base diameter with plate

    8.8 in

  • HEPA filter

    Glass HEPA Media



Dyson Purifying Fan Overview

¹The AHAM AC1-2015 standard sets out how air cleaner manufacturers can define their performance by "the relative reduction of particulate matter suspended in the air in a specified test chamber" - this means their performance is based on cleaning efficiency rates only. 

²Tested to Dyson internal test method TM-003711 in a 290ft² room and DTM801.

³Standard data and messaging rates may apply. Requires Wi-Fi and app-enabled device. Requires iOS version 10 or above, or Android version 5 or above. Your mobile device must have Bluetooth 4.0 support.

Certified asthma & allergy friendly® and the asthma & allergy friendly® symbol are certification marks and registered trademarks of Allergy Standards Limited and the Asthma and Allergy Foundation of America.