Bacteria and mould found in the dust created by vacuums could lead to health problems in people with allergies, infants and those with compromised immunity.
Researchers at the University of Queensland and Laval University found the dust could act as a transmitter for infant botulism infection, which can potentially result in Sudden Infant Death Syndrome.
They tested the emissions of 21 vacuum cleaners in a clean air tunnel, and concluded vacuum cleaners should be considered when assessing cases of allergies, asthma or infectious diseases.
Read more at Applied and Environmental Microbiology