Dyson HP09 Review: Better Filter, Same Premium Design

Dyson Purifier Hot+Cool Formaldehyde (HP09) by Dyson

Air Purifier
4.5
HomeAirIQ Rating

The HP09 improves on the HP07 with Dyson’s advanced formaldehyde filter while retaining the same multifunction design.

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At a Glance

Pros

  • Formaldehyde-destroying catalytic filter
  • Excellent smart features
  • Quiet operation
  • Heats, cools, and purifies

Cons

  • Still very expensive
  • Limited CADR vs. dedicated purifiers

Key Specifications

Category
Premium formaldehyde-targeting smart air purifier with heat and fan
Recommended room size
Ideal for small-to-medium rooms and living areas
Filtration stages
HEPA H13 + activated carbon + catalytic formaldehyde filter
Sensor
Measures PM2.5, PM10, VOCs, NO2, formaldehyde
Noise level
Variable; optimized quiet operation in Night Mode
Fan & heating
Air multiplier fan with thermostatic heating control
Controls
Remote, on-device, Dyson Link app, and voice assistants
Dimensions
Similar to HP07 tower form factor
Price Range: $700–$900

You'll Love This Product If...

Great for users needing a multifunction purifier that targets VOCs and formaldehyde specifically.

You Might Want to Skip This If...

Not suitable if you need high airflow for large rooms.

How This Product Affects Your Indoor Air Quality

A premium all-in-one solution that prioritizes VOC control and smart-home integration.

How We Tested This Product

The catalytic filter showed benefit in VOC reduction tests but airflow limits remain similar to HP07.

Alternatives to Consider

Final Verdict

The HP09 improves on the HP07 with Dyson’s advanced formaldehyde filter while retaining the same multifunction design.

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