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Dyson Purifier Hot+Cool Formaldehyde™ HP09 (White/Gold)

Overall rating

70% of reviewers would recommend to a friend.

Very happy

SunnyMe

I really love this purifier. My son has some asthma issus with which it has helped a lot. We are living in a small apartment and it helps to clean the air after cooking too! It's just perfect

Frequently asked questions

What's new about the Dyson Purifier range and how is it different to other purifiers?

Dyson engineers are perfectionists. Channeling our relentless dissatisfaction, we have re-engineered our latest purifiers to be fully sealed to HEPA H13 standard.⁹  Two phases of purification sit within a fully-sealed filtration and airflow system to trap pollutants inside, preventing them from leaking back into the air you breathe. 

What is different about the Dyson Purifier Formaldehyde range?

The Dyson Purifier Formaldehyde range has all of the capabilities found in our advanced purification products, but goes a step further to detect and destroy formaldehyde.⁺ An added solid-state sensor precisely detects formaldehyde, while our catalytic filter breaks it down into two safer molecules – carbon dioxide and water.

What is formaldehyde and what are its common sources?

Formaldehyde is a polluting gas formed of carbon, hydrogen, and oxygen that is commonly found in homes. Sources of formaldehyde in your home could include paint and varnishes, air fresheners, mattresses, furniture, household cleaners, carpets, particleboard and plywood, electronics, dryer sheets, nail polish remover, moth balls, toys, fireplaces, and wood burning stoves.

What is HEPA H13?

HEPA grades refer to filter efficiency at a certain particle size. HEPA H13 is a filter with a 99.95% removal efficiency of particles down to 0.1 microns per liter of air. Dyson filters also capture 99.97% of particles down to 0.3 microns in size including common pollutants such as allergens*, bacteria, viruses, pollen, and mold spores.

How often should I replace my filter?

We recommend replacing the HEPA+Carbon filter roughly every 12 months, depending on how often you use it. That’s because over time filters can become clogged with pollutants and even let unpleasant odors back into the room. The machine will alert you when it’s time to change filters. A filter life reading can be found on the LCD screen and via the MyDyson app.⁵ The catalytic filter never needs replacing.

Why can’t I control the temperature or activate heating via the MyDyson app?

This machine is compliant with safety standard UL 1278, as required by the US government. For this reason, heating and temperature control are not available in the MyDyson app.⁵ Please use your machine’s remote control instead.

Do Dyson purifiers capture wildfire smoke?

Dyson purifiers capture wildfire smoke.¹¹