A:Answer Hi there, this is David with Dyson. Dyson Pure Hot+Cool™ air purifiers will operate with HEPA filters, which are designed to capture 99.97% of allergens as small as 0.3 microns making this an ideal air purifier for allergy sufferers, pets, dust, smoke, pollen, cooking smells, and mold spores. Dyson air purifiers will also be effective at removing pet dander. However, it's worth noting they will only be effective as it relates to pollutants, and allergens in the air.
Best wishes,
David
Dyson Customer Support