We'll cover all these Dyson series. Read Customer Service Reviews of www.dyson.com - Trustpilot The advanced HEPA & activated carbon filtration is fully sealed, ensuring that any pollutants, bacteria, etc. Dyson Indoor Air Quality Index (AQI) Shows your current indoor air quality. Blueair Blue Pure 411 Small Room Air Purifier (Grey) . Delhi's air quality in very poor category, mercury expected to go up to 40ºC. Chauhan's Phase 1 data highlights how air quality can be impacted by daily activities. Dyson Purifier Hot+Cool™ (HP07) Dyson's latest purifiers are re-engineered to deliver 50% cleaner air.1 Intelligent sensors reacts to pollution events automatically, reporting in real time to the LCD screen and Dyson Link app.2 Two phases of purification sit within our fully sealed filtration and airflow system. For the medium-sized space, the reading reached "Very Bad" from "Severe" after an hour. Dyson Pure Cool™ - Owners | Dyson The first of its kind for Dyson, the Purifier Humidify+Cool Formaldehyde Fan ($899.99) is a multifunctional machine that purifies, humidifies, and cools the air with a fan, all while detecting and getting rid of formaldehyde. The air purifiers come with a 2-year parts and labor warranty. AirDoctor 5000 vs Dyson Cool Formaldehyde TP09 Air Purifier Researchers have been investigating the causes of poor indoor air quality "since at least the 1880s," according to Brent Stephens, Ph.D.,an expert on indoor pollutants at the Illinois . Exactly one year ago, we managed to get our hands on the then new Dyson Pure Cool air purifier and quickly fell in love with it. The TP01 is also missing the air-quality sensor of its strongest competitors — you have to spend $100 . Indoor Air Quality - Dyson Dyson Pure Cool review: Are the Dyson fans worth the money?