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
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Dyson Purifying Desk 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
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.
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.
Monitors and purifies using its quiet settings, with a dimmed display.
Curved to store neatly on top of the machine.
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
Base diameter with plate
Refurbished machines have either been previously sold by Dyson and returned, or incurred minor cosmetic damage during handling.
Every machine is rigorously tested by Dyson engineers, with genuine Dyson parts used where replacements are needed. The machines are thoroughly cleaned before being made available for sale.
Refurbished Dyson machines are packed with all cables and accessories. Please note, it’s not always possible to pack them in their original packaging.
Unfortunately, refurbished machines cannot be returned and are final sale.
Yes, all refurbished machines are covered by the Dyson warranty – either for 6 months or one year. Please check the machine page for more information on the length of guarantee.
Choose your model
Refurbished Dyson Pure Cool™ DP04 purifying fan (White/Silver)
Purifier and fan. Auto-mode and sleep mode. Bluetooth, Wifi and Amazon Alexa compatible. LCD screen reports air quality levels in real time.
What's includedSee all Click to learn more
Curved and magnetised to store neatly on the machine
Dyson Genuine Filter (DP04, TP04, HP04)
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.