Dust Mite
Scientific Name: Dermatophagoides pteronyssinus (European) or Dermatophagoides farinae (American)
Order & Family: Order: Sarcoptiformes; Family: Pyroglyphidae
Size: Microscopic, typically 0.2–0.3 mm in length.
Natural Habitat
Found indoors worldwide, particularly in textiles like mattresses, carpets, upholstered furniture, and bedding where humidity is high.
Diet & Feeding
Primarily feeds on dander (dead skin cells) shed by humans and pets.
Behavior Patterns
They thrive in warm, humid environments (70-80% humidity). They do not bite or live on people, but spend their life cycle within household dust and fabrics.
Risks & Benefits
They are a major source of allergens. Enzymes in their waste (feces) and decaying body parts can trigger asthma, eczema, and allergic rhinitis in sensitive individuals. They provide no significant benefits to humans.
Identified on: 1/14/2026