Common Dust Mite

Natural Habitat

Found globally in human dwellings, primarily in mattresses, carpets, upholstered furniture, and bedding where humidity is present.

Diet & Feeding

Primarily feeds on detritus such as dead human skin cells (dander) and some fungal spores.

Behavior Patterns

Microscopic and photophobic (avoid light); they thrive in warm, humid environments (above 70% relative humidity) and have a life cycle of about 65 to 100 days.

Risks & Benefits

Major source of allergens; their waste products and carcasses can trigger asthma, eczema, and allergic rhinitis in humans. However, they play a minor role in breaking down organic matter in the household ecosystem.

Identified on: 1/4/2026