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From Dyson’s product page: HEPA and activated carbon filters remove gases and capture 99.97% of allergens as small as 0.3 microns.
Sorry, there was a problem. Please try again later.Hello there, this is Kelly with Dyson. The Dyson PH01 Pure Humidify + Cool does have a HEPA filter. The HEPA and activated carbon filters remove gases and capture 99.97% of allergens as small as 0.3 microns. Best wishes, Kelly Dyson Customer Support
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