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Frequently asked questions

How does the Dyson Best Price Guarantee work?

If within 7 days of purchase, you find the same model advertised at a lower price by Argos, Currys or John Lewis in the UK, we’ll refund the difference. 

Just start a WhatsApp conversation or contact our Customer Service team on 0800 298 0298.

  • Product must be the exact same model as appears in a Dyson Demo store or on Dyson.co.uk and be in stock with a qualifying retailer.
  • Proof of advertised price by a qualifying UK retailer is required.
  • Qualifying retailers are: John Lewis, Currys and Argos.
  • Promise does not apply if your purchase is part of a bundle or collection that can also be purchased individually at full price.
  • Refunds will be processed by our Customer Service team within 5 working days.

Product advertised must be new and in its original packaging. Promise does not apply if the product is reconditioned, refurbished, used, damaged, returned, open box or a demonstrator product…

Just start a WhatsApp conversation or contact our Customer Service team on 0800 298 0298.

Is a Dyson air purifier able to lower the room temperature?

No, Dyson fans and purifiers are not designed to lower the room’s temperature and therefore is not an air conditioner unit. Rather, our products cool you by supporting the body’s natural cooling mechanism - by helping moisture evaporate from skin, which transfers heat from your body making you feel cooler.

Our devices provide you and your home with a powerful, targeted and pure cooling air flow.

How do Dyson fans work?

Our purifier fans use the Air Multiplier™ technology, which generates the circulation power to draw even distant pollutants into the machine, projecting purified air throughout the room.² And because they have no fast-spinning blades or grille, unlike conventional fans, they are safe and easy to clean.

How loud are the fans?

Thanks to the bladeless design our machines are engineered so that even the lighters sleepers can get a restful night of sleep. Which is crucial during hot summer nights as higher temperatures increase wakefulness, reduce deep wave and REM sleep. The Dyson HEPA Cool Formaldehyde is 20% quieter than the previous generation, and our Purifier Big+Quiet Purifier – is our quietest ever purifier, and up to 88% quieter in Night Mode.

So you can stay cool, without disturbing your sleep. Additionally, with the sleep timer feature, you can programme it to turn off after preset intervals, from 15 minutes to 9 hours. 

Which Dyson fan is the best?

When it comes to choosing the best air purifier or fan for your needs and your home, use our Help me Choose tool to find the perfect purifier fan for your home here .

  • 1 Tested for filtration efficiency at 0.1 microns (EN1822, ISO29463)
  • 2 In maximum setting. Tested for air projection, purification coverage in a 81m³ room.
  • 3 Gas capture rates may vary.