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Dust Mite

Dust is one of the most common allergens found in the home. The amount of house dust in a home is related to the age of the property, the efficiency of the air filter on the heating and air conditioning system, and the effectiveness of the cleaning methods applied by the residents. The primary allergen in household dust is dust mite allergen (usually found in dust mite droppings). Dust mites are microscopic members of the spider family that feed on dead human skin flakes. They tend to live in places where human skin flakes are available as a food source, such as bedding, carpets, and in furniture.

Recent medical literature reports that exposure to house dust mite allergens is a significant risk factor for the development of allergic diseases, such as asthma and allergic rhinitis (hay fever). Results from earlier work suggests that over 45 percent of U.S. homes, or approximately 44 million dwellings, have bedding with dust mite allergen concentrations that exceed a level associated with allergic sensitization. It is estimated that 22 million homes have bedding with dust mite allergen concentrations at a level that can trigger asthma in susceptible people.

Learn more about dust mites.

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