Senses pollutants in real time Automatically detects & reports air quality levels in real time on PM 2.5, PM 10, VOC & NO2. Captures pollutants with 360° sealed HEPA & activated Carbon filters The fully-sealed filter system combines an activated Carbon filter to remove gases, & a Glass HEPA filter that captures 99.97% of microscopic allergens & pollutants as small as 0.3 microns. Intelligent reporting Automatically senses, captures & projects – then reports to your Dyson Link app. Oscillates up to 350° Adjustable oscillation angle from 45° to 350°, to help project purified air around the whole room. Backward airflow mode Purifies without cooling you. Fan mode Purifies while also cooling you as a fan. Night-time mode Monitors & purifies using its quiet settings, with a dimmed display. Remote control Curved to store neatly on top of the machine. Parent Tested Parent Approved Awarded the PTPA seal of approval. The seal of approval families trust. Voice control Using Amazon Alexa, control your machine using simple, spoken instructions. Certified Asthma & Allergy friendly™ Dyson purifiers are certified asthma & allergy friendly by the Asthma & Allergy Foundation of America.