Dust allergy is actually a sensitivity to substances in the waste particles and body fragments of house dust mites.

IS EVERYONE ALLERGIC TO DUST?
While almost everyone is irritated by exposure to large amounts of dust, only some people have a true allergic reaction to house dust. This true allergic sensitivity is just as real and just as specific as an allergy to ragweed, tree pollen, or cat dander. It may cause nasal symptoms, eye inflammation, asthma, or eczema.

Dust Mite Avoidance Video