Vacuum cleaners overlooked for harmful bacteria

In the first published study of its kind, researchers examined the contents of bags from 21 home vacuum cleaners ranging in age and price, finding consistently high rates of bacteria and moulds (Penicillium/Aspergillus) and even some antibiotic resistance genes.

Most bacteria likely came from human hair and skin and could potentially lead to inhalation of infectious or allergenic aerosols which should be considered in cases of allergy, asthma or infectious disease, the authors said.