Dyson Refurbished PH04 Humidify+Cool Formaldehyde Purifier

• Dyson now offers the Dyson PH04 Humidify + Purify Fan refurbished, now $299.99 (regular price $699.99).
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Editor's Pick: This machine combines purification, humidification, and airflow in one. A formaldehyde sensor works with a catalytic filter to continuously break down formaldehyde, while the HEPA filter captures 99.97% of particles as small as 0.3 microns, so the air it blows out is clean and moisturized. Refurbished units undergo Dyson's professional inspection and cleaning, with performance calibrated to new-unit standards. The exterior may have minor scratches that do not affect use.