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Different hair collections hanging in a lab

The engineering story

A 1,010-mile journey. To understand the science of hair.

James Dyson holding motor

“Hair dryers shouldn't damage hair. With our technology, we knew we could do better.”

James Dyson, Engineer

Testing the water.

To understand how to look after hair, we dug deeper into its hydrophobic properties. We found that damaged hair absorbs water more quickly than healthy hair, which can weaken it. 

Vintage and competitor hair dryers

Hair dryers haven’t changed much since the ‘60s.

Conventional hair dryers were being held back by big, bulky motors, and could cause irreversible heat damage to hair. We weren't willing to accept convention.

Dyson Supersonic hair dryer disassembled in lab

1,010 miles of hair. 103 specialists. One purpose.

Straight, wavy, coiled, curly. 1,010 miles of real hair went through our purpose-built labs. Our specialist team of hair scientists, engineers and stylists looked at everything from airflow dynamics to hair’s cellular structure, to understand thermal, mechanical and chemical damage, and their effect on hair health.

Hair strand under microscope

Damage can be invisible. But not to us.

Extreme heat. Brushing. Chemicals and coloring. Everyday styling regimes can cause invisible, irreversible damage. Only by understanding everything about hair could we turn hair drying on its head.

Dyson Supersonic hair dryer technology cutaway

Controlled heat.

Temperatures above 302°F cause irreparable damage, so we developed Intelligent Heat Control. Adding a glass bead thermistor in front of the heating element meant we could measure the exit airflow temperature 20 times every second, and prevent temperatures exceeding 302°F.

Dyson Supersonic hair dryer side view lab test

Powerful airflow.

We found that effective drying requires controlled heat balanced with powerful air. The Dyson digital motor V9 had the power to dry hair fast, without relying on extreme heat. And because it’s so small, it could fit in the handle, enabling a light, balanced feel in the hand.

Dyson Supersonic hair dryer prototypes

Fail. Fail again. Fail better.

We built 600 prototypes, 599 of them failures. But each one taught us something: how we could make it better. Every iteration was an improvement. Every prototype closer to a revolutionary invention.

Million dollars invested in hair research

Miles of hair analyzed

Months in development

Dyson engineers assigned to the project

Hair dryer front view

Dyson Supersonic™ hair dryer.

Engineered from the inside out, with hair science at its core, the Dyson Supersonic™ hair dryer relooks haircare. Four years of development have put an end to extreme heat damage. For good.

Choose your model

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Dyson Supersonic™ hair dryer on a bed

Give guests an exclusive styling experience, in the comfort of their own room.

Direct from Dyson

Price match promise

Price match promise

Price Match Promise

Be confident that you're getting the best price on If within 30 days of purchase you should find the same model currently advertised by an authorized US Dyson retailer at a lower price, we’ll refund you the difference. Just contact our Customer Service team at 1-866-664-9004 or chat to get started. Here’s what you’ll need to know:

- Product must be the exact same model number as it appears on and in stock.

- Proof of advertised price by an authorized dealer is required (Copy of Flyer or Website URL).

- Authorized dealers are limited to Amazon, Barneys, Best Buy, Costco, Bed Bath & Beyond, Home Depot, Kohls, Lowes, Macy’s, MOMA, Neiman Marcus, QVC, Sams Club, Sears, Sephora, Target, Ulta, Video Audio Center, and Wal-Mart.

- Product must be new and in original packaging. It cannot be reconditioned (refurbished), used, damaged, returned, open box, or a demonstrator product.

- Product price must not be lower due to an advertising error or misprint.

Lower price will not be honored if the result of a violation of a Dyson unilateral advertising or pricing policy or if doing so would result in a violation of a Dyson policy.

Free shipping

Free shipping

Free Shipping

The shipping cost of machines (vacuum cleaners, fans, heaters, humidifiers, purifiers, hair dryers, and lighting) is free of charge when ordering on In-stock orders received by 1:00 PM Eastern Time Monday-Friday will usually ship same day. Orders will usually ship the next business day if received after 1:00 PM Eastern Time, on Saturday-Sunday, or on public holidays. All tools, accessories, and spare parts will ship separately, and be delivered between 7-10 business days. Any items not part of an order containing a machine will incur a $8.95 shipping and handling charge.

On acceptance of orders, Dyson will make every effort to process them within the stated time frame. Dyson will not be held liable for shipping delays caused by severe weather or unforeseen events. To ensure the security of purchases, Dyson may need to contact customers to validate orders, which may cause delays. Transit time may vary depending on proximity to distribution center and inventory availability. Dyson only ships to US delivery addresses in the 50 states, and cannot deliver to PO boxes or APO/FPO addresses.

2-year warranty

2-year warranty

Dyson parts and labor warranty

All Dyson cordless vacuums, purifiers, humidifiers, heaters, fans, and hair dryers are covered by our 2-years parts and labor warranty. All Dyson upright and canister vacuums are covered by our 5-years parts and labor warranty. But we'll still be here when yours runs out; we provide Dyson technology owners with a lifetime of support.

If you need to contact Dyson for advice, you'll speak to a Dyson employee in our US office. Phone, email, live chat, Facebook, Twitter; our experts are on hand. And for out-of-hours assistance, you can find quick answers on our help pages.

And when you buy from, we register your warranty automatically - you won't have to fill in any more forms.

30-day money-back guarantee

30-day money-back guarantee

Money-back Guarantee

If you’d like to return a Dyson machine for a full refund, you need to do so within 30 days of purchase. For Dyson Cyclone V10™ vacuums, you have 90 days from purchase. Dyson Direct will pay for return freight.


Customer Service Helpline

If you have questions please contact us. You can email or call:

- - Our Digital Support team is available 24 hours a day, 7 days a week. Most inquiries are handled within two hours or less

- 1-866-MY-DYSON (1-866-693-9766) - Our Helpline is available from 8am - 8pm Monday to Friday, and 9am-6pm Saturday (closed Sunday). 


Dyson Direct Returns Policy

If you wish to return any product purchased from Dyson Direct, please contact our toll-free Contact Center at 1-866-MY-DYSON (1-866-693-9766) prior to returning your merchandise. 

To receive a full refund for an item purchased from Dyson, please follow these three steps:

1. Call the Contact Center to initiate your return and to identify the correct return shipping address and method.

2. Package the item(s) to be returned in the original Dyson packaging.

3. Send your returned item(s) shipping prepaid to Dyson within 30 days of purchase for a full refund. Unauthorized or COD returns will not be accepted.

Please allow 4-8 weeks for return processing. Products returned to Dyson will receive a full refund and Dyson will pay for the return freight.