False colour scanning electron micrograph (SEM) of a dust mite, Dermatophagoides sp., in a sample of household dust taken from a vacuum cleaner. The dust mite thrives in damp houses, feeding on groceries, furniture stuffing, wallpaper paste & other such delicacies. It is seen here foraging among skin scales, cat fur, synthetic & woollen fibres & soil particles - typical contents of a vacuum cleaner. Magnification: x145 at 35mm size, x290 at 6x7cm size, x1000 at 8x10-inch size. Blue & brown colouring.