Asked by: Tim Sully, Colchester

Advertisement

There's a common misconception that it’s mostly human skin. It's not: that mainly ends up in the bath or shower.

Two thirds of the dust in your house comes from outside, as dirt tracked in on your feet, and airborne particles like pollen and soot. The rest is mostly carpet fluff, clothes fibres and pet hair.

Read more:

Advertisement

Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.

Authors

luis villazon
Luis VillazonQ&A expert

Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.

Advertisement
Advertisement

Sponsored Deals

BBC Science Focus Magazine subscription offer

Spring Savings!

  • Try your first 6 issues for just £9.99 when you subscribe to BBC Science Focus Magazine.
  • Risk - free offer! Cancel at any time when you subscribe via Direct Debit.
  • FREE UK delivery.
  • Stay up to date with the latest developments in the worlds of science and technology.
SUBSCRIBE NOW
Advertisement