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Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you're buying the best. Find out more about how we test. Dyson Purifier Cool Formaldehyde TP09: two-minute review The Dyson Purifier Cool Formaldehyde TP09 is a tower fan and air purifier combo with smart capabilities, which allows for easy control and air data reviewing via the MyDyson companion app. With a list price of $749.99 / £549.99 / AU$999.99, the white and gold Dyson Purifier Cool Formaldehyde TP09 purifying fan is well-priced in the UK and Australia, but curiously costs much more for the nickel and gold colorway at Dyson US.

レトロなフロッピーディスクをモチーフにした新モバイルバッテリー「TP09」が先行販売中！特別クーポンもあり。懐かしさを感じながら、最新技術を体験！

> Friday 27th December 2019 > ... > 0930 Manchester Victoria to Huddersfield, powered by 68027, using set TP09. My stalker is back! > ... For the first time since this journey, I've had my former stalker for haulage! This time working the 1837 London Marylebone to Stourbridge Junction, which I took as far as Banbury, with set CH04 in tow. A change in operator for the loco and Mark 5A set, and a change of hometown for me, in the intervening 6 and a half years. I've only had 5,745 miles of 68 power in between too! Statistics: Posted by Pilot — 29 May 2026 19:19 * * *

Overall, the most significant differences again between the Dyson TP07 and TP09 air purifiers are the features and performance. Importantly, the TP09 offers a number of new features, not available…

The Dyson HEPA Cool Formaldehyde™ is engineered with Dyson's most advanced filtration system that combines a precise, solid-state formaldehyde sensor with a unique catalytic filter that continuously destroys formaldehyde.¹ Powerful Air Multiplier™ technology purifies air throughout the whole room.**In maximum setting. Tested for air projection (DTM801) and purification coverage in a 2860ft3 room (TM-003711)¹Third party full machine testing based on GB/T 18801-2018 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldeyde CADR is achieved. Results may vary in practice.²Requires device to run app, Wi-Fi or mobile data, Bluetooth 4.0 support, and iOS version 10 or Android version 5 (or above). Standard data and messaging rates may apply.Automatically senses, captures, and traps pollutants for cleaner air.Detects and destroys formaldehyde released from household items.Fully sealed to HEPA H13 standard. The HEPA filter captures 99.97 percent of particles 0.3 microns in size. An additional filter removes odors and gases including VOCs.Air Multiplier technology generates the circulation power to draw distant pollutants into the machine, projecting purified air throughout the whole room.Automatically senses and reacts to changes in air quality, then reports pollution in real time on LCD screen and on the MyDyson app.Choose between Fan mode for direct cooling with your choice of 0 to 350 degree oscillation and Backwards airflow mode to purify without cooling.The filter is quick and easy to change. With automatic filter-life notifications on the LCD screen or MyDyson app.Program your machine to turn off after pre-set intervals between 30 minutes and 8 hours.In Night mode, the machine monitors and purifies using the quietest settings with a dimmed display.Control and monitor your air quality from anywhere using the MyDyson app.

Get the Dyson Purifier Cool Formaldehyde TP09 for $499.99 and the Dyson Purifier Hot+Cool HP07 for $549.99 at Amazon.