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Frequently asked questions

Is it true that the powerful airflow of Dyson Airblade™ hand dryers means that more particles are blown around the washroom, risking a greater spread of bacteria?

A number of studies are used by the paper towel industry to support bold and inaccurate claims. In general, these studies were not conducted under conditions or scenarios that simulate real life or an actual situation that a person would reasonably experience when using a Dyson Airblade™ hand dryer. Researchers that conducted these studies were only able to achieve such a result by grossly contaminating their gloved hands with bacteria and viruses, and drying them with a Dyson Airblade™ hand dryer without washing their hands first. Conversely, research studies by the University of Bradford (UK) and by the Hong Kong Polytechnic University showed that, when used correctly, Dyson Airblade™ hand dryers actually reduced the bacteria on hands.

Dyson's new independent research into aerosolization shows that that drying hands with a Dyson Airblade™ hand dryer aerosolizes no more than drying with paper towels³ – and that Dyson Airblade™ hand dryers are hygienic and safe to use.²

What does HEPA stand for?

HEPA stands for High Efficiency Particulate Air. To be a genuine HEPA filter, like fitted in all Dyson Airblade™ hand dryers as standard, the filter must pass test standards EN1822-5 and IEST-RP-CC001.6. Any filter which does not state it is a HEPA filter may not be proven to work to such high levels of efficiency.

Should I use a paper towel or hand dryer when drying hands? Which is more effective?

Hand washing is a crucial way of reducing the spread of bacteria and viruses. Drying hands properly is an important step in that process as damp hands can spread up to 1,000 times more bacteria than dry hands.⁹ Dyson Airblade™ hand dryers have been proven to be as hygienic in drying hands as paper towels,¹⁰ but without the environmental damage or high usage costs.¹¹

 

Only Dyson Airblade™ hand dryers offer all of these benefits

  • 1 Dry time determined using Dyson test method 769 based on NSF P335 using a measurement of 0.1g residual moisture.
  • 2 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.
  • 3 Based on aerosolization measured during hand drying. Testing conducted by independent third-party lab.
  • 4 HEPA filter tested to IEST-RP-CC001.6, by an independent testing laboratory, under prescribed test conditions.
  • 5 Snelling, et al., J. Applied Microbiology 110.1 (2011): 19-26.
  • 6 Global survey conducted in July 2020 across 14 countries worldwide (UK, DE, ES, FR, IT, NL, US, CA, MX, CN, JP, MY, SG, AU) with 8758 respondents in total (1,094 in the US), aged 18 years-old or above. Individual percentages vary per country.
  • 7 Tested in an external lab according to ISO 22196 against E. coli, Salmonella enterica, Staphylococcus aureus and Klebsiella pneumonia and ISO 21702 against H3N2 (influenza) virus.
  • 8 Energy consumption determined for Eco mode.
  • 9 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.
  • 10 R. Mutters, S.L. Warnes, J. of Hospital Infect. (2019): 101 408-413.
  • 11 Average electricity price $0.1/kWh as of July 2021. For calculations visit www.dyson.com/calcs