Vacuuming primarily removes dust mite allergens — the microscopic particles from their waste and body fragments that trigger allergic reactions — rather than the mites themselves. Some mites will be lifted into the vacuum, but the more important outcome is reducing the allergen load on mattresses, carpets and upholstery.
For broader dust mite control, vacuuming works best as part of a routine that includes dust mite mattress protectors, dust mite sprays, weekly hot washing of bedding, and keeping indoor humidity below 50%. A dehumidifier can help with that last point. For a complete approach, see our top 10 products to minimise dust mites.