¹ 99.95% efficiency with particulate challenge per EN1822 in a chamber per ASTM F3150.
² In Eco mode on hard floor. Run time will vary based on power mode, floor type and/or attachments used. 120 minutes run time is based on consecutive use of two separate battery packs.
³ Business SKU features longer cord and extra remote.
⁴ We challenged our purifier with airborne influenza A (H1N1 virus) at an independent lab. After 60 minutes at maximum fan speed, the airborne concentration in the chamber was reduced by 99%. Real-life efficacy may vary.
⁵ Third party full machine testing based on GB/T 18801-2015 formaldehyde cumulative clean mass testing with continuous injection until plateau of formaldehyde CADR is achieved. Results may vary in practice.
⁶ D. R. PATRICK, G. FINDON and T. E. MILLER: Residual moisture determines the level of touch-contact-associated bacterial transfer following hand washing, Epidemiol. Infect. (1997): 119, 319-325.
⁷ Dry time determined using Dyson test method 769 based on NSF P335 using a measurement of 0.1g residual moisture.
⁸ The environmental impact of electrical appliances and paper towels was measured by Carbon Trust. The calculations were produced using the software Footprint Expert Pro, based on product use over 5 years and using weighted averages of individual countries of use. Dry times for product were evaluated using DTM 769.
⁹ Average electricity price $0.1/kWh as of May 2019. For calculations visit www.dyson.com/calcs
¹⁰ Based on findings in a 2019 study by Suen et al. published in Scientific Reports, and a separate independent study of particles (≥0.3 microns) and bacteria in air during hand drying, conducted by a third-party laboratory.
¹¹ Tested in boost mode at the cleaner head to ASTM F558, dust-loaded.
¹² In boost mode. All other modes achieve at least 99.97% filtration.