VOLKER STEGER / SCIENCE PHOTO LIBRARY VOLKER STEGER / SCIENCE PHOTO LIBRARY
Vacuum cleaner bag contents. Coloured scanning electron micrograph (SEM) of the contents of a vacuum cleaner bag after cleaning a house. Household dust includes dead insects (as seen here, blue), shed skin, hairs, pollen grains and fungal spores. Some of these may cause allergic reactions in susceptible people. Magnification unknown.
Model release not required. Property release not required.