The Dyson PH04 has a fully closed system
This way, it meets the HEPA 13 norm, so the air doesn't escape before it's purified
The completely airtight HEPA 13 filter system can filter 99.95% of all particles from the air, like ultra-fine dust, dust, pollen, allergens, and viruses, as small as 0.1 microns
Air Multiplier (TM) technology circulates purified, humidified air throughout the whole room
Cools you when needed
In warmer weather, a powerful stream of purified, humidified airflow can cool you down
You can stay up-to-date with the air quality in your home with the Dyson Link App
On this smartphone app, you can see the current reports on the air quality and the remaining lifespan of the filters
You can also use the app to control the air purifier from a distance
Program your machine to turn off after pre-set intervals between 30 minutes and 8 hours
At night the machine monitors purify and humidify using the quiet settings, with a dimmed display
Low maintenance easily-to-replace filters
Both with built-in notifications when they require maintenance
Activate the machine's monthly hassle-free Deep clean cycle at the touch of a button