The testing of vacuum cleaners and similar domestic electrical appliances such as air cleaners involves the use of "test-dust"; inert particles consisting of silicon dioxide, aluminium, iron and sodium oxides. It is used to mimic typical household dust, which is composed of a mixture of fibres and particles of varying sizes and compositions. Sources of which include skin, mites, soil, heating emissions and pollen grains. In this blog post, we talk to Dr. Angela Southey, a lead researcher at airmid healthgroup, about a recent study she conducted and presented at the prestigious 13th International Conference on Indoor Air Quality and Climate in Austin, Texas comparing the characteristics of ISO fine test dust to real house dust.
This blog post follows an interview format with Angela Southey PhD at the test facility at airmid healthgroup and offers a very valuable insight on the subject.