Everything on the Dyson PH04
Improved filter technique
The Dyson PH04 has a completely closed-off system. It meets the HEPA 13 requirement because of this, so the air doesn't escape before it's filtered. This completely airtight HEPA 13 filter system filters 99.95% of all particles up to 0.1 micron from the air, like ultra fine dust, dust pollen, allergens, and viruses.
Dyson Link App
The Dyson PH04 has a completely closed-off system. It meets the HEPA 13 requirement because of this, so the air doesn't escape before it's filtered. This completely airtight HEPA 13 filter system filters 99.95% of all particles up to 0.1 micron from the air, like ultra fine dust, dust pollen, allergens, and viruses.
Improved and thorough cleaning
You clean the PH04 with 1 touch of a button. With this monthly deep clean cycle, you can easily remove bacteria and limescale from the water system of your Dyson air purifier. Useful, because you don't have to spend much time on cleaning the water system yourself.
