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Dyson

Dyson Purifier Hot+Cool Formaldehyde™ HP09

Based on 116 reviews
Condition: New
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$829.00
Holiday Deal · 13% off was $949.99

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At a glance

Condition
New
Style
HP09
Model
497044-01
Dimensions
5.12"D x 5.12"W x 30"H
Weight
12.6 lb
Color
White/Gold
Power Source
Electric
In the box
Dyson Purifier Hot+Cool Formaldehyde™ HP09

Features 2

  • Multifunctional. Intelligently purifies, cools and heats you.
  • Automatically senses, captures and traps pollutants for cleaner air. Even detects and destroys formaldehyde.1

Description

Dyson's latest purifiers combine intelligent sensing with an advanced filtration system. Three phases of purification sit within a fully sealed filtration and airflow system. CAVEAT 1: ¹Third party full machine testing based on GB/T 18801-2018 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice.

Specs 25

Color White/Gold
Brand Dyson
Product Dimensions 5.12"D x 5.12"W x 30"H
Power Source Electric
Item Weight 12.6 pounds
Control Method Remote
Filter Type HEPA
Floor Area 290

Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews

Best air filter / fan !!
Absolutely amazing. These fans are quiet, and have the best air filtrating that we’ve ever had (2 dogs and 3 kids)! We have them in most rooms now because they work so well. My wife and daughters love the heat option in the winter too. The price is certainly limiting, but we wait for them to go on sale. Scheduling on the app is super easy to use too ! ... show more
Reviewed in the United States on March 8, 2025 by BadgerDoc
Worth it.
I own 2 Dyson fans, I really love them, this one is next level though. The APP shows you what’s in the air you’re breathing and the air quality, it’s pretty cool and scary at the same time. The filter lasts a long time, in the 2 years since I bought this air purifier fan, I only had to replace the filter 1 time, but I keep mine on Auto so it’s running nonstop. Plus, it’s just about silent unless you have it really turned up, then it sounds like a low hum fan. ... show more
Reviewed in the United States on April 9, 2026 by Anonymous
We really enjoy the fan!
Love this fan!!! It’s quiet and sleek. We run our fan every night, great output, and have no issues with it. Enjoy controlling it with the phone.
Reviewed in the United States on March 18, 2026 by Chantel
Stops reading the air quality after a month
Does not work well. Stopped working after the return window ends. It doesn’t connect with the phone it keeps reading “offline” the worst part is it just doesn’t even purify the air. We had work done in our house and they worked with very strong chemicals. I have air quality sensors in every room of my house and all of them were reading the highest level of toxicity. The Dyson kept reading perfect air quality with 0 contaminants. It’s a fraud. Opening the window cleared the air faster this junk. Does not read the air and does not purify it. Oh also does not “cool” it just blows air like any old fan. ... show more
Reviewed in the United States on June 14, 2025 by Narda Cano
Great Purchase
This was pricey but I’m glad I purchased it. It works great and is very quiet. It cools and heats our sunroom well.
Reviewed in the United States on June 24, 2025 by Debbie Brown
Mixed Feelings
I bought this during the summer because it says that it’s supposed to cool. It does not cool. It’s easy to use, but it’s large and noisy. It’s not worth the money I paid for it. I kept it because I had a problem with another brand and had to mitigate some damage done to my home by the other brand. It does get rid of all odors, and I am hoping that it will improve my air quality. I really like that it shows you the amount in your air of several different pollutants that could be in your air. It didn’t say that there was anything wrong with the air for several weeks, but it did detect a tiny bit of CO when it was placed near the gas stove on a day when we were doing a lot of cooking, so I assume that all of the detector functions are working properly. The heater function works nicely for keeping my dog warm. It seems like too much money for what it does. The remote has to be placed face down to stick to the device. It would be more useful if you could use the remote without having to pick it up each time. ... show more
Reviewed in the United States on December 23, 2024 by Adele
Love!
Absolutely love this. I love how cool it helps keep our upstairs in the summer and it gives my daughter some heat in the winter. I also love how it helps purify the air. It's extremely quiet unless it's on the highest setting, but I don't mind the white noise.
Reviewed in the United States on June 17, 2025 by katie
Works great
Works perfectly the only downside might just be wind speed I wish it was stronger you have to almost be in front of it to feel it. Otherwise it does clean the air in my room rather quickly and allows me to monitor contamination in the air.
Reviewed in the United States on March 6, 2025 by Jonathan Velez
How it works
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