Dust Mite
Scientific Name: Dermatophagoides farinae / Dermatophagoides pteronyssinus
Order & Family: Order: Sarcoptiformes, Family: Pyroglyphidae
Size: 0.2–0.3 mm (too small to be seen clearly by the naked eye)
Natural Habitat
Found indoors globally, primarily in mattresses, furniture, carpets, and household dust where humidity is high.
Diet & Feeding
Detritivorous; they primarily feed on flakes of dead human and animal skin (dander) shed in the environment.
Behavior Patterns
They thrive in dark, warm, and humid environments (above 50% relative humidity). They do not bite but live and breed within fibrous materials.
Risks & Benefits
Risk: Major source of indoor allergens. Their droppings and body parts can trigger asthma, eczema, and allergic rhinitis in sensitive individuals. Benefit: None to humans; they act as decomposers of organic matter in the micro-ecosystem.
Identified on: 7/1/2026