House dust mite

House dust mite is a type of mite that is commonly found in residential environments. These mites are a common cause of allergy and asthma symptoms.

Overview

House dust mites are microscopic, eight-legged creatures that are 0.2–0.3 millimeters in length. They are members of the Arachnid family, which also includes spiders, ticks, and scorpions. House dust mites thrive in warm, humid environments and feed on the dead skin cells that humans and pets shed daily.

Habitat

House dust mites are found worldwide, but are particularly common in humid climates. They are typically found in bedding, upholstered furniture, and carpets. House dust mites prefer environments with a relative humidity above 70% and temperatures above 20°C (68°F).

Health effects

House dust mites are a common cause of allergic rhinitis, also known as hay fever, and can also trigger asthma attacks. The mites themselves are not harmful; however, their feces and body fragments can trigger allergic reactions in susceptible individuals. Symptoms can include sneezing, runny or itchy nose, itchy eyes, and coughing.

Prevention and control

There are several strategies for reducing exposure to house dust mites. These include using allergen-proof bed covers, washing bedding regularly in hot water, and reducing indoor humidity. In addition, regular vacuuming can help to reduce mite populations in carpets and upholstery.

See also

• Dermatophagoides farinae
• Dermatophagoides pteronyssinus
• Allergen
• Asthma

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  House dust mites

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  A scanning electron micrograph of a female dust mite