You're carrying it everywhere - but there may be other passengers joining your mobile on its travels. Katie finds out more...
If your phone isn't as fresh as you thought, check out our five cleaning tips www.bbc.com/ownit/take-contro...
For more from BBC Own It, visit www.bbc.com/ownit
Негізгі бет Ойын-сауық How dirty is your mobile phone?
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