Dyson Purifier big+quiet™ Formaldehyde

Captures dust and allergens. Removes 99.95% of particles as small as 0.1 microns. ¹Automatically senses and captures pollutants. Purifies and heats the whole room. ² Senses and reports. Automatically detects airborne particles and gases, then diagnoses and reports them in real time. CirculatesAir Multiplier technology generates the circulation power to purify the whole room. ³ Purifier sealed to HEPA H13⁴ Sealed airflow and filtration system. So our whole machine, not just the filter, meets HEPA H13⁴ standard. What goes inside, stays inside.