The Dyson Purifier Cool TP09 combines sealed HEPA filtration covering 800 sq ft with a full-room Air Multiplier fan — automatically responding to air quality events with 10 fan speeds and real-time VOC, PM 2.5, and formaldehyde sensing.
| Coverage | 800 sq ft air purification |
| Filtration | HEPA H13 + Activated Carbon 360° sealed system |
| Formaldehyde | Catalytic filter — continuously destroys formaldehyde |
| Fan | Air Multiplier 10-speed, 350° oscillation |
| Air Quality | Real-time LCD — PM 2.5, PM 10, VOCs, NO2, formaldehyde, humidity, temp |
| Auto Mode | Yes — AI responds to pollution events automatically |
| Smart | MyDyson app, Alexa/Google, voice control |
| Noise | As low as 42 dBA at lowest setting |
"I live downtown with terrible outdoor air quality. The TP09 auto mode is running at high almost every time there's traffic surge. My apartment air quality is now consistently better than outside."
Source: Amazon.ca reviewer
"The formaldehyde tracking was eye-opening. New furniture was spiking VOC levels I didn't know about. The TP09 lets me see and respond to that."
Source: Reddit (r/airquality)
"Expensive but so is everything Dyson makes and they all deliver. I've had mine three years without any issues."
Source: Reddit (r/dyson)
High total cost of ownership including…
High total cost of ownership including $70/yr filters — over 5 years, the TP09 costs nearly $1,150 all-in, versus ~$400 for a Coway + dedicated fan with comparable real-world performance.
Source: Reddit (r/airpurifiers)Fan cooling weaker than dedicated tower…
Fan cooling weaker than dedicated tower fans — the Air Multiplier produces less raw airflow than a dedicated fan at the same price, making it less effective as a primary cooling solution in hot rooms.
Source: RTINGS.comLouder than expected for a premium…
Louder than expected for a premium product — 42 dBA at the lowest setting is noticeable in a quiet bedroom, whereas Levoit and Coway models reach 24-27 dBA on sleep mode.
Source: Amazon.ca reviewerThe Dyson TP09 is among the best air purifiers available, but it's an expensive way to get there. Sealed HEPA, 800 sq ft coverage, formaldehyde destruction, and real-time sensing are all genuine advantages. The total cost of ownership and the ongoing filter expense are real considerations. Buy it if Dyson's build quality and integrated design matter to you; choose a Coway + fan if you want maximum performance per dollar.