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The Dyson Purifier Humidify+Cool PH2 De-NOx is a three-in-one floor unit that purifies, humidifies and circulates air as a fan. Its fully sealed HEPA H13 system captures 99.97% of particles down to 0.3 microns, and the De-NOx filter adds extra nitrogen dioxide capture plus continuous formaldehyde breakdown. It stands out from plain purifiers by adding hygienic UV water treatment and app and voice control, but it is large, heavy and needs regular filter and water care. It suits people who want one machine for dry, polluted rooms and are willing to pay for the integration.
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Lowest price we've seen: $899.99 on Nov 11 at Best Buy. Tracked across 8 stores since Nov 11.
Owners rate it well overall, praising the sealed filtration, quiet operation at low speeds and the convenience of purifying and humidifying in one unit. Complaints center on size, the upkeep of filters and the water tank, and the app setup.
Dyson Purifier Humidify+Cool PH2 De-NOx purifies and hygienically humidifies the whole room.⁴ It also cools you.⁶ Hygienically removes 99.9% of bacteria in the water.¹⁰ Removes odors and gases,¹ and continuously destroys formaldehyde.⁹ Advanced air purification captures 50% more NO₂.⁸ The fully sealed, 3-stage filter system captures 99.97% of particles as small as 0.3 microns.³ The whole purifier, not just the filtration system, is fully sealed to HEPA H13 grade.³ Air Multiplier™ technology projects over 77 gallons per second of smooth, yet powerful airflow.⁷ Connects to the MyDyson™ app to control and monitor air quality from anywhere, or hands-free with compatible voice services.⁵ ¹Gas capture rates vary. ²Refers to non-living material. ³Particle challenge with DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested per ISO 29463. ⁴Tested for air projection (DTM801) and humidification (TM-002110). ⁵Requires device to run app, Wi-Fi or mobile data, Bluetooth 4.0 support, and iOS version 10 or Android version 5 (or above). Standard data and messaging rates may apply. Refer to the MyDyson app for compatible voice services. ⁶Fan, not air conditioning unit. ⁷Tested to DTM-801, in fan mode, at speed 10. ⁸Tested to Dyson test method TM-003387. In a 3 cubic meter test chamber, at fan speed 10, at third-party test laboratory (Fraunhofer WKI), comparison against regular activated carbon performance. ⁹Third party full machine testing based on GB/T 18801-2022 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice. ¹⁰Humidifier water tank sterilization system tested on S. aureus, E. coli, P. aeruginosa and B. subtilis. Water tank was inoculated with live bacteria. Samples taken of the humidification water after the first 87mL of flow were compared with initial inoculated water, showing 99.9% reduction in viable bacteria. ¹¹Based on fan speed 1. In the box: Remote control, Combined HEPA + k-Carbon filter.
