Where Does All This Dust Come from?

Most of indoor dust comes from outdoors. In the study, David Layton and Paloma Beamer point out that household dust consists of a potpourri that includes dead skin shed by people, fibers from carpets and upholstered furniture, and tracked-in soil and airborne particles blown in from outdoors.

Where did that dust come from?

Dust is made of fine particles of solid matter. On Earth, it generally consists of particles in the atmosphere that come from various sources such as soil lifted by wind (an aeolian process), volcanic eruptions, and pollution. Dust in homes is composed of about 50% dead skin cells.

Where does dust in bedroom come from?

“The bedroom, for example, has a tendency to generate dust from the bedding fibers, dust mites, and skin cells. If a room has carpet and other upholstered furniture, dust levels increase even more.”