What cleans dirt, but never gets dirty? don't think to hard, it's rather!

Question: What cleans dirt, but never gets dirty!? don't think to hard, it's rather simple!.!.!.!?
Answers:

soapWww@Enter-QA@Com

AMMONIAWww@Enter-QA@Com

washer MachineWww@Enter-QA@Com

water
washing machine
vacuum
soap
etcWww@Enter-QA@Com

soap or a vaccum cleanerWww@Enter-QA@Com

windWww@Enter-QA@Com

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